On a mild Sunday afternoon in March 2018, a retired Russian intelligence officer and his daughter collapsed on a wooden bench beside a shopping centre in a quiet English cathedral city, foaming at the mouth, their pupils reduced to pinpoints, their bodies seizing in front of weekend shoppers who first assumed the pair were drunk. The chemical that put them there was not a bullet, not a knife, not a staged accident on a motorway. It was a fourth-generation military nerve agent, a substance designed in Soviet laboratories for the express purpose of killing soldiers on a battlefield, smeared in gel form onto the front door handle of a suburban home. Within ten days the British government had named the Russian state as the author of the attack. Within a month, twenty-eight other countries had joined a coordinated expulsion of Russian diplomats that remains the largest in the history of the Cold War or anything that followed it. The operation killed one person, an innocent woman who had nothing to do with espionage, and it failed to kill the man it was sent to kill.

The Salisbury poisoning matters far beyond the specific tragedy of Sergei Skripal, Yulia Skripal, and Dawn Sturgess. It matters because it is the clearest modern case study of an extraterritorial state assassination going catastrophically wrong, and because every government that conducts operations on foreign soil now studies it as a negative template, a worked example of how not to reach across a border and end a life. For an analytical series concerned with India’s shadow war against terror, the Salisbury case is not a digression. It is a control group. India’s alleged campaign of targeted killings inside Pakistan, the pattern of motorcycle-borne shooters eliminating designated terrorists in Karachi, Lahore, Sialkot, and Rawalpindi, is conducted under a set of operational constraints that look, in retrospect, like a point-by-point inversion of the choices Russia made in Wiltshire. Russia chose a banned chemical weapon; the shadow war uses conventional pistols. Russia contaminated a city; the shadow war confines its violence to a single target on a single street. Russia left a forensic trail that led directly back to a state laboratory; the shadow war leaves the kind of evidence that produces an unsolved file. Russia triggered universal condemnation; the shadow war has produced diplomatic friction but no coalition. Understanding why Salisbury became a disaster is, in a real sense, understanding why India’s quieter campaign has not.

This article reconstructs the Salisbury operation in detail, traces the investigation that unmasked the men who carried it out, and then holds the Russian operation against India’s shadow war across seven specific dimensions of operational design. It does not argue that India’s campaign is morally superior to Russia’s, and readers should be clear about that distinction from the outset. An extrajudicial killing remains an extrajudicial killing whether it is conducted with a nerve agent or a nine-millimetre round, and operational competence is not a substitute for legal legitimacy. What the comparison reveals is narrower and more useful: the difference between a covert operation that achieves its strategic purpose while remaining deniable and a covert operation that achieves nothing while inviting the full weight of international retaliation. Salisbury is the second category. The shadow war, for now, is the first.

Background and Triggers

To understand why a man living quietly in an English provincial town became a target for Russian military intelligence, one has to go back to the world of Cold War espionage and the particular crime, in Moscow’s eyes, of the double agent. Sergei Viktorovich Skripal was born in 1951 and rose through the ranks of the Soviet and then Russian armed forces, eventually serving as a colonel in the GRU, the military intelligence directorate of the Russian General Staff. He was not a desk officer. Skripal served abroad, including a posting in Malta and work in Spain, and it was during this period, in the mid-1990s, that he was recruited by Britain’s Secret Intelligence Service. For roughly a decade he passed information to MI6, reportedly identifying serving Russian intelligence officers operating under cover in Europe. Russian counter-intelligence eventually caught him. Arrested in Moscow in 2004, convicted of high treason in 2006, Skripal was sentenced to thirteen years in a penal colony.

Skripal did not serve that full sentence. In July 2010, he was one of four prisoners held in Russia who were exchanged for ten Russian sleeper agents arrested in the United States, the so-called Illegals Programme that included Anna Chapman. The swap took place on the tarmac of Vienna airport, a deliberately theatrical echo of the Cold War prisoner exchanges on the Glienicke Bridge in Berlin. Skripal was flown to Britain, granted protection, and settled in Salisbury, a city of around forty thousand people in Wiltshire best known for a medieval cathedral whose spire is the tallest in the United Kingdom. He bought a modest house on Christie Miller Road, drove a red BMW, and lived under his own name. His wife Liudmila died of cancer in 2012; his son Alexander died in 2017. By early 2018, Skripal was sixty-six years old, a widower, and to all outward appearances a retired man whose espionage career had ended more than a decade earlier.

The question that drives the entire Salisbury case is why Moscow would expend a sophisticated military asset to kill a man who had been exchanged in a sanctioned swap, who held no current secrets, and who posed no operational threat to anyone. Conventional intelligence logic says you do not break a swap. The exchange of prisoners works only if both sides honour the principle that a traded agent is, from that point, off the board. To poison Skripal eight years after Vienna was to announce that Russia no longer recognised that principle, and analysts have offered several explanations for why the Kremlin would want to make exactly that announcement.

A first explanation is deterrence aimed at Russia’s own intelligence community. Vladimir Putin, himself a former KGB officer, has spoken publicly and with unusual venom about traitors. In a 2010 interview, shortly after the swap that freed Skripal, Putin said that traitors would “kick the bucket” on their own, and recalled that the lives of those who betray their service end badly. The message of Salisbury, read this way, is directed less at the West than at the serving officers of the GRU, the FSB, and the SVR. It tells every Russian intelligence professional that defection carries a sentence that does not expire, that being exchanged buys time but not safety, and that the reach of the state extends to a suburban street in Wiltshire eight years after a betrayal. A double agent in this reading is not killed because he is dangerous. He is killed because killing him is useful, because the fear it generates in others has a value that no single elimination could match.

This logic is worth dwelling on, because it is what most sharply distinguishes the Skripal operation from a counter-terrorism killing. A counter-terrorism elimination is, at least in principle, prospective: it removes a person to prevent future harm. The poisoning of an exchanged double agent is retrospective: it punishes a past act, and it does so to discipline a watching audience. Russian intelligence has a long institutional memory on this point. The 1940 murder of Leon Trotsky in Mexico City, carried out with an ice axe by an agent of Soviet intelligence, was a punishment of a defector and an ideological enemy years after he had ceased to hold any operational position. The 1978 killing of the Bulgarian dissident Georgi Markov in London, by a ricin pellet fired from an adapted umbrella, followed the same pattern of reaching across a border to silence a man whose only current offence was that he embarrassed the state. Litvinenko in 2006 was another link in that chain. Seen against this history, Salisbury is not an aberration. It is the continuation of an institutional habit, updated with a more modern weapon, and that habit is precisely what makes the Russian approach so different in spirit from the doctrine examined in the comparison section of this article.

The second explanation looks at timing. The attack came shortly before the Russian presidential election of March 2018 and three months before Russia hosted the football World Cup. Some analysts argued that a demonstration of strength played well to a domestic audience and that the Kremlin calculated, correctly or not, that Western governments would not seriously disrupt a major sporting event over the fate of one retired spy. A third explanation, less flattering to Moscow, treats the operation as the product of institutional momentum: a clandestine GRU unit with a standing mandate for disruptive operations abroad, a target list, and a level of autonomy that allowed it to act without the careful political calculation a more disciplined system would have demanded. These explanations are not mutually exclusive. What unites them is the recognition that Skripal was killed, or rather targeted, for what his death would signal, not for what his life still threatened. That distinction matters enormously when the Salisbury operation is later set against India’s shadow war, because India’s targets are chosen on precisely the opposite basis. The men eliminated in Pakistan are, by India’s account, current operational figures with blood on their hands and plans in motion. Skripal was a closed file. Russia reopened it to make a point.

Weapon choice flowed from the same logic. Russia did not need a nerve agent to kill a sixty-six-year-old man living without bodyguards in a town with no special security infrastructure. A staged burglary, a road accident, a heart attack induced by any number of less exotic means would have ended Skripal’s life with a fraction of the risk. The decision to use Novichok, a class of agent so closely associated with the Soviet chemical weapons programme that its very presence functions as a signature, suggests that deniability was never the operation’s primary goal. You do not reach for the most traceable weapon in your inventory if your aim is to leave no trace. The weapon was part of the message. That single decision, more than any other, is what turned a targeted killing into an international crisis, and it is the first of the seven dimensions on which Salisbury and the shadow war diverge so completely.

There is one further trigger that any complete account has to name, and it concerns the institution rather than the individual. The GRU, the Main Directorate of the Russian General Staff, is the military intelligence service of the Russian armed forces, and it is distinct from the civilian foreign intelligence service, the SVR, and from the domestic security service, the FSB. The GRU has historically been the most aggressive of the three, the service most willing to conduct sabotage, subversion, and direct action abroad. In the years following 2014, a period that intelligence analysts identify as a turning point, the GRU’s appetite for disruptive operations in Europe expanded markedly. The annexation of Crimea, the war in eastern Ukraine, and the broader confrontation with the West appear to have loosened whatever restraint had previously governed the service’s foreign adventures. Salisbury, in this institutional reading, was not a one-off decision taken in isolation. It was the product of a service that had spent four years becoming steadily bolder, operating a dedicated clandestine unit with a standing mandate, and growing accustomed to acting without the careful political calculation a more disciplined system would have demanded. The trigger for Salisbury was partly Skripal’s history, partly the Kremlin’s appetite for a deterrent signal, and partly an institution that had been allowed, year on year, to take larger risks for smaller reasons.

The Reconnaissance and the Approach

Two men carried out the operation on the ground, travelling to Britain under the names Alexander Petrov and Ruslan Boshirov. They arrived at Gatwick airport at three in the afternoon on Friday 2 March 2018, having flown from Moscow on Aeroflot flight SU2588. British investigators would later reconstruct their movements with a precision that owed much to the density of closed-circuit television coverage in the United Kingdom, a surveillance environment far less forgiving than the one the two men were accustomed to operating in. From Gatwick the pair travelled into London and checked into the City Stay Hotel in Bow, in the east of the capital. They stayed there on both the Friday and the Saturday nights.

On Saturday 3 March, the two men made their first journey to Salisbury. They travelled by train from Waterloo, arrived in the city at around half past two in the afternoon, and left less than two hours later, at ten past four. British police assessed this trip as a reconnaissance run, a chance to walk the ground, to locate Skripal’s house on Christie Miller Road, to time the journey, and to identify the approach and the exit. Reconnaissance of this kind is standard tradecraft. What was not standard, and what would later prove decisive for the investigation, was that the two officers conducted that reconnaissance on camera, in a country where their faces would be recorded at the railway station, on the street, and in the immediate vicinity of the target’s home, and where those recordings would be retained, collated, and eventually published to the world.

The most consequential forensic detail of the entire operation emerged from the City Stay Hotel. After the men had left Britain, investigators tested their hotel room and found traces of Novichok in it. The contamination was at a level the authorities described as very low, too low to harm subsequent guests, but its presence was devastating in evidential terms. It placed the nerve agent physically in the possession of two named travellers, in a specific room, in a specific hotel, on the specific nights before the attack. A covert operation depends on severing the chain between the weapon and the operator. Salisbury did not sever that chain. It documented it. The agent was in the hotel room, the hotel room was registered to Petrov and Boshirov, the travel records tied Petrov and Boshirov to Aeroflot flights from Moscow, and the whole sequence could be laid out as a single uninterrupted line. This is the kind of evidentiary trail that India’s shadow war, by every available account, does not leave, and the contrast is examined in detail later in this analysis.

On Sunday 4 March, the two men made the journey to Salisbury for the second time. They travelled by underground from Bow to Waterloo at around five past eight in the morning, then continued by train to Salisbury. Closed-circuit television footage released by the police placed both men in the immediate vicinity of the Skripals’ house at two minutes before noon. The investigators’ reconstruction is that the Novichok, carried in a modified counterfeit perfume bottle fitted with an applicator, was smeared in gel form onto the exterior handle of the front door of the house on Christie Miller Road at some point that morning. The choice of the door handle as a delivery surface is itself a piece of grim engineering. It guaranteed contact with the skin of anyone who opened the door from inside, it required no proximity to the victim at the moment of poisoning, and it allowed the operators to be many miles away by the time the agent took effect. Having completed the application, the two men left Salisbury, returned to Waterloo by around quarter to five in the afternoon, and boarded an underground train to Heathrow at roughly half past six. They flew out of Britain that same night on Aeroflot flight SU2585, departing at half past ten. They were back in Moscow before the city of Salisbury understood what had happened to it.

The Day of the Attack

Sergei Skripal and his daughter Yulia spent the early part of that Sunday in an ordinary way. Yulia, thirty-three years old, had flown in from Moscow to visit her father; she had arrived in Britain the previous afternoon. At around half past one, the pair left the house on Christie Miller Road, the same door whose handle had by then been coated with a military nerve agent, and drove Sergei’s red BMW into the centre of Salisbury. They parked in the Sainsbury’s upper level car park shortly before two. They visited a pub, the Mill, and then ate lunch at a Zizzi restaurant in the city centre. To the people around them they were a father and daughter on a quiet weekend outing. Inside their bodies, a substance designed to defeat the human nervous system was already at work.

Novichok agents kill by disrupting the chemistry that allows nerves to switch off. The body’s muscles, including the muscles that drive breathing and the rhythm of the heart, depend on a constant cycle of signal and reset. A nerve agent blocks the enzyme that performs the reset, so the signal never stops, the muscles never relax, and the body is driven into a cascade of convulsions, fluid production, and respiratory collapse. The agents in the Novichok family were developed in the later decades of the Soviet chemical weapons programme, under a project the West came to associate with the name Foliant, and they were engineered in part to be more potent than the Western nerve agents of the era and to evade the protective equipment of the time. This was the substance now circulating in the bloodstreams of two civilians walking through an English market town.

The Skripals collapsed on a bench near the Maltings shopping centre at around quarter past four in the afternoon. A doctor and a nurse who happened to be passing stopped to help; the initial assumption, entirely reasonable given the symptoms, was a drug overdose. Yulia was found slumped and unconscious; Sergei was rigid, his eyes open, his condition visibly extreme. Emergency services from the Wiltshire ambulance and police arrived quickly, and both Skripals were rushed to Salisbury District Hospital, where staff began the difficult work of treating two patients whose symptoms did not match any common diagnosis. It would take days for the true cause to be identified, and in the interval the hospital, the emergency responders, and the wider city were all exposed, unknowingly, to a contaminant whose persistence and toxicity none of them had any reason to suspect.

The persistence of the agent produced a third victim within hours. Detective Sergeant Nick Bailey was among the first police officers to enter Sergei Skripal’s house on Christie Miller Road that evening, as part of the initial investigation into what was still believed to be a medical emergency of unknown origin. Bailey was not wearing chemical protection, because nobody yet knew that chemical protection was needed. He became critically ill from contact with the agent, most likely from the contaminated door handle or surfaces inside the home, and was admitted to intensive care. His poisoning underscored a feature of the operation that the planners in Moscow either failed to anticipate or chose to disregard: a nerve agent smeared on a public-facing surface in a residential street does not confine itself to its intended target. It waits. It contaminates whoever touches it next, and whoever touches them, and the buildings, vehicles, and possessions that the victims pass through. The Skripals were the target. Nick Bailey was not. He was the operation’s first piece of unplanned collateral, and he would not be the last.

The Hours After

On Monday 5 March, with two patients deteriorating in a way the hospital could not explain and a police officer now also gravely ill, the response escalated. Counter-terrorism police took over the investigation. Samples were sent to the Defence Science and Technology Laboratory at Porton Down, a government research facility located, by a geographical coincidence that bordered on the surreal, only a short distance from Salisbury itself. Porton Down’s scientists are among the world’s leading authorities on chemical and biological agents. By Wednesday 7 March, they had reached a conclusion that transformed a baffling medical case into a matter of national security: the Skripals had been poisoned with a nerve agent of the Novichok class.

The identification of Novichok narrowed the field of suspects almost to a single point. The Novichok family of agents was the product of the Soviet chemical weapons programme. The expertise to synthesise it, the precursor chemicals, and the production knowledge were concentrated in the Russian state’s military and scientific apparatus. While some former Soviet chemists later argued that the formulae had leaked and that other actors might in principle produce Novichok-type compounds, the British government’s assessment, supported by Porton Down’s analysis and by intelligence on Russian capability and intent, was that the agent had been produced in Russia and that the attack was the work of the Russian state. On 12 March, the Prime Minister, Theresa May, addressed the House of Commons. She told Parliament that there were only two plausible explanations for what had happened in Salisbury: either this was a direct act by the Russian state against the United Kingdom, or the Russian government had lost control of a militarily catastrophic nerve agent and allowed it to fall into other hands. Both explanations placed responsibility in Moscow.

May gave Russia a deadline to provide a credible account. Moscow’s response was denial layered on counter-accusation. Russian officials variously suggested that the agent might have come from Porton Down itself, that Britain was incapable of conducting a fair investigation, that the entire affair was an anti-Russian provocation, and, in time, that the two named suspects were innocent civilians whose presence in Salisbury was nothing more sinister than tourism. On 14 March, with no credible answer forthcoming, the British government announced the expulsion of twenty-three Russian diplomats identified as undeclared intelligence officers. That single national measure would, within a fortnight, become something without precedent.

The Salisbury operation, by this point, had already failed in its narrowest objective. Sergei Skripal did not die. His daughter Yulia did not die. Both spent weeks in critical condition, and for a period their survival was genuinely uncertain, but the medical teams at Salisbury District Hospital, working with guidance from Porton Down, kept them alive. Yulia regained consciousness and was discharged in April 2018; Sergei, more severely affected, was discharged the following month. The man Russian military intelligence had crossed a border to kill walked out of hospital alive. An operation that uses a fourth-generation military nerve agent and fails to kill a single unprotected pensioner has, by any professional standard, gone wrong twice over: it has failed to achieve its objective, and it has done so while leaving a trail of evidence and contamination that no amount of denial could erase.

The Investigation and the Unmasking

The investigation that followed the Salisbury attack is, in its own right, one of the most important developments in the modern history of intelligence accountability, and it is the reason the operation cannot be filed away as just another unsolved poisoning. Two distinct streams of work ran in parallel. The first was the official British investigation, conducted by counter-terrorism police with the support of the security and intelligence agencies. The second was an open-source investigation conducted by the journalism collective Bellingcat and its Russian partner, the publication The Insider. Between them, these two streams did something Russian intelligence operations had rarely faced before: they put names, faces, ranks, biographies, and a chain of command to a clandestine state operation, and they did it in public.

British counter-terrorism detectives reconstructed the movements of the two suspects with the help of Britain’s extensive surveillance camera coverage. In September 2018, the Crown Prosecution Service announced that there was sufficient evidence to charge two Russian nationals, travelling under the names Alexander Petrov and Ruslan Boshirov, with conspiracy to murder Sergei Skripal, the attempted murder of Sergei and Yulia Skripal and Detective Sergeant Nick Bailey, and the use and possession of a chemical weapon. The police laid out the timeline in detail: the Aeroflot flights, the City Stay Hotel in Bow, the Novichok traces in the hotel room, the reconnaissance trip on the Saturday, the proximity to Skripal’s house on the Sunday. Theresa May told Parliament that the British government had concluded the two men were officers of the GRU and that the operation had been approved at a senior level of the Russian state.

What made the British case unusually robust was the convergence of multiple independent evidence streams. Closed-circuit television placed the men in space and time. Aeroflot booking and passenger records placed them on specific flights. Hotel registration tied them to a specific room. Chemical analysis of that room tied them to the agent. Each stream was, on its own, suggestive; together they formed a lattice that no single denial could unpick. This is the methodological lesson that intelligence services took from Salisbury, and it is worth stating plainly: in a high-surveillance society, a covert operation does not leave one piece of evidence that can be explained away, it leaves dozens of small traces that corroborate one another, and the corroboration is what kills deniability. An operator can construct an innocent story for a single camera sighting. No operator can construct an innocent story for a camera sighting that aligns perfectly with a flight record, a hotel booking, and a chemical trace.

Moscow’s reply was the now-notorious television interview. On 13 September 2018, the two suspects appeared on the Russian state broadcaster RT, interviewed by its editor-in-chief Margarita Simonyan. Petrov and Boshirov presented themselves as ordinary tourists, sports nutrition businessmen who had travelled to Salisbury, twice, in March, to admire the cathedral and its famous spire, which they described, with a precision odd for casual sightseers, as one hundred and twenty-three metres tall. They said they had wanted to see Old Sarum and Stonehenge. They denied carrying Novichok and offered the memorable defence that decent men do not travel with women’s perfume in their luggage. The interview was widely regarded, even by observers sympathetic to Moscow, as a failure. It did not establish the men as civilians; it established them as poor liars, and it drew global attention to the very faces the operation should have kept hidden.

It was the open-source investigation that completed the unmasking. Working from the passport photographs and the leaked travel records, Bellingcat and The Insider established that the name Alexander Petrov was a constructed alias, a persona with no residential history or documentation before 2009. Then, in late September 2018, Bellingcat published its central finding: the man travelling as Ruslan Boshirov was in reality Colonel Anatoliy Vladimirovich Chepiga, a decorated officer of the GRU. Chepiga had trained at an elite military academy, served in a Spetsnaz brigade, deployed multiple times to Chechnya, and, the investigators established, had been made a Hero of the Russian Federation, the country’s highest state honour, an award conventionally bestowed by the president in person. A few weeks later, in October 2018, Bellingcat identified the second man, Alexander Petrov, as Dr Alexander Yevgeniyevich Mishkin, a trained military physician working for the GRU, who had also received the Hero of the Russian Federation award. In February 2019, the investigators went further still, identifying a third GRU officer present in Britain at the time of the attack, a major general travelling under the cover identity Sergey Fedotov, whose real name they established as Denis Sergeev and who appeared to have coordinated the operation. Subsequent reporting placed all of these men within a single clandestine formation of Russian military intelligence, designated Unit 29155, commanded by Major General Andrey Averyanov and tasked with disruptive operations and assassinations abroad.

The exposure of Unit 29155 broadened the Salisbury story from a single operation into the discovery of an institution. Investigative reporting linked the same cadre of officers, and the same unit, to a wider pattern of activity across Europe. Officers from the unit were tied to a 2015 poisoning attempt against the Bulgarian arms manufacturer Emilian Gebrev, who survived. The unit was connected to a failed coup attempt in Montenegro in 2016. Most strikingly, in later years the unit’s officers, including the two Salisbury operators, were linked by Czech authorities to the 2014 explosion of an ammunition depot at Vrbetice, a sabotage operation that killed two depot employees. What this pattern revealed was that Salisbury was not the improvisation of two men but the standard output of a permanent structure: a small, elite, decorated team, trained for exactly this category of work, with a documented record of operations stretching across the continent. For the analyst, this is the most important single fact to absorb. Salisbury was not a rogue act. It was a system functioning as designed, and the unmasking of that system, officer by officer and operation by operation, is what made the case so much more damaging to Russia than the poisoning of one man could ever have been on its own.

Held against the standard of a successful covert operation, that dual investigation carries a significance that is difficult to overstate. A covert action is, by definition, an action a state can plausibly deny. The Salisbury operation lost its deniability at every level. It lost it at the level of the weapon, because Novichok pointed to Russia. It lost it at the level of the operators, because Chepiga and Mishkin were identified by name, rank, and decoration. It lost it at the level of the institution, because the operators were traced to a named GRU unit. It lost it at the level of command, because that unit was traced to a named general. By early 2019, an interested member of the public could read, in open-source reporting, a structured account that ran from a suburban door handle in Wiltshire all the way up to a major general in Moscow. No competently designed covert operation produces that. The shadow war, by contrast, has produced files in Pakistan that name no operators, trace no chain of command, and end, repeatedly, with the phrase “unidentified gunmen,” a point developed in the seven-dimension comparison below and explored at length in the broader analysis of India’s shadow war against terror.

Key Figures

The Salisbury operation is best understood through the specific people it involved, on every side of it. Five figures in particular carry the weight of the story, and their individual histories illuminate why the operation unfolded as it did.

Sergei Skripal

Sergei Skripal is the man at the centre of the case, and the most important thing to grasp about him is how thoroughly unremarkable his life had become by 2018. A former GRU colonel, recruited by MI6 in the 1990s, convicted of treason in Moscow in 2006, exchanged in the Vienna swap of 2010, he had spent eight years living openly under his own name in Salisbury. He was a widower who had lost his wife in 2012 and his son in 2017. He held no current secrets. He had no protective detail. He was, in intelligence terms, a spent asset, and his targeting is the clearest evidence that the operation was driven by symbolic deterrence rather than by any operational necessity. Skripal survived the attack, was discharged from hospital in May 2018, and was subsequently moved, with his daughter, to a protected location. His survival is the operation’s defining failure.

Yulia Skripal

Yulia Skripal was thirty-three at the time of the attack and had no role in espionage whatsoever. She was visiting her father from Moscow, where she lived an ordinary civilian life. Her poisoning is a direct illustration of the operation’s indifference to collateral harm. A nerve agent applied to a door handle cannot distinguish between a former intelligence officer and his visiting daughter; whoever touches the handle, or is touched by someone who did, is exposed. Yulia spent weeks in critical condition, regained consciousness, and was discharged in April 2018. In a recorded statement after her recovery, she spoke of the disorientation of waking to find her life irreversibly altered. She is, in the strict sense, a victim of an attack that was not aimed at her, and her case foreshadows the still graver fate of Dawn Sturgess.

Anatoliy Chepiga

Colonel Anatoliy Chepiga, who travelled as Ruslan Boshirov, was one of the two operators on the ground. His biography, reconstructed by Bellingcat, is that of a career special forces and military intelligence officer: elite academy training, service in a Spetsnaz brigade, multiple Chechnya deployments, and the award of Hero of the Russian Federation. That a man of such seniority and decoration was deployed for the Salisbury operation tells us two things. It tells us the Kremlin considered the mission important enough to commit a highly trusted officer. It also tells us that the operation’s exposure was correspondingly more damaging, because the unmasking of a Hero of the Russian Federation as a chemical weapons operator was an embarrassment that reached the highest levels of the Russian state, given that the award is conferred personally by the president.

Alexander Mishkin

Dr Alexander Mishkin, who travelled as Alexander Petrov, was the second operator. His background as a trained military doctor is significant. A physician on a chemical weapons mission is a logical pairing: medical knowledge is useful for the safe handling of a lethal nerve agent and for understanding its effects. Mishkin, like Chepiga, had been made a Hero of the Russian Federation, reportedly for activities connected to Russia’s operations in Ukraine. The identification of two such officers, decorated at the highest level, working as a pair, did more than expose two individuals. It exposed the existence of a dedicated cadre within Russian military intelligence trained and trusted for exactly this category of work.

Dawn Sturgess

Dawn Sturgess is the figure whose fate gives the Salisbury case its full moral weight, and she should never be reduced to a footnote. A forty-four-year-old British woman living in Amesbury, a town close to Salisbury, Sturgess had no connection to espionage, to Russia, or to Sergei Skripal. In late June 2018, nearly four months after the attack, her partner Charlie Rowley found what appeared to be a sealed box of perfume. It was, in fact, the counterfeit perfume bottle that investigators believe had been used to transport and apply the Novichok, discarded after the operation. Rowley gave it to Sturgess. She applied what she believed was perfume to her wrists. She fell ill within fifteen minutes and died on 8 July 2018. Charlie Rowley was also poisoned and gravely ill but survived. Dawn Sturgess is the only fatality of the Salisbury operation. The agent that Russian intelligence failed to use to kill its intended target instead killed a woman chosen by nothing more than the accident of where a poisoned object was thrown away. Her death is the single most important fact in any honest accounting of the operation, and it is the reason the seven-dimension comparison that follows must be read as analysis of operational design, not as moral ranking.

Consequences and Impact

The consequences of the Salisbury operation fall into several categories, and taken together they explain why intelligence professionals regard the attack as a strategic defeat for Russia regardless of any signalling value it may have carried.

The diplomatic consequence was historic in scale. Britain’s expulsion of twenty-three Russian diplomats, announced on 14 March 2018, was followed by a coordinated international response that Moscow plainly did not anticipate. The United States expelled sixty Russian diplomats and closed the Russian consulate in Seattle. Across Europe, and beyond it, country after country announced expulsions in solidarity with Britain: Germany, France, Poland, the Baltic states, Canada, Australia, Ukraine, and many others. By the end of March 2018, twenty-eight countries plus NATO had acted, and the total number of Russian diplomats and intelligence officers expelled reached around one hundred and fifty, the largest collective expulsion of its kind in modern history. For Russian intelligence, the loss of roughly one hundred and fifty positions, many of them undeclared officers operating under diplomatic cover, represented a genuine and lasting degradation of its European networks. Rebuilding that human infrastructure takes years. The operation that was meant to project Russian strength instead amputated a significant portion of Russia’s clandestine reach across the Western world.

Sanctions delivered the economic and legal consequence. The United States imposed sanctions specifically tied to the Salisbury attack under chemical weapons legislation. The European Union, in January 2019, sanctioned individuals connected to the operation, including the head of the GRU. These measures added to an already substantial sanctions architecture and reinforced Russia’s status as a state subject to coordinated Western economic pressure. The legal consequence, in the form of criminal charges that could never realistically be enforced through extradition, mattered less for any prospect of a trial than for the permanent official record it created. A charge sheet issued by the Crown Prosecution Service is a state document. It converts an allegation into a formal accusation that exists in the public legal record indefinitely, and it ensures that the two officers, and by extension the unit and the state behind them, carry the status of formally accused chemical weapons attackers for the rest of their lives.

There was also an intelligence consequence, distinct from the diplomatic one and arguably more lasting. The expulsions removed officers; the unmasking removed a capability. Once Bellingcat and the British investigation had named Unit 29155, traced its commander, and connected it to actions in Bulgaria, Montenegro, and the Czech Republic, the unit’s central asset was gone. That asset was obscurity. A clandestine formation works only while its existence, its personnel, and its methods remain unknown to the services that would otherwise watch for it. After early 2019, every Western counterintelligence agency held a roster of faces, a pattern of travel behaviour, and a profile of the unit’s tradecraft. Officers whose photographs and true identities now sat in open-source databases could not be sent abroad again under any cover, and their operational lives were effectively over. The structure itself, built over years and at considerable expense, had been converted from a hidden instrument into a watched and catalogued one. A state can replace expelled diplomats within a year or two. Rebuilding a burned clandestine unit, and restoring the secrecy that gave it value, is the work of a decade, and some of it cannot be rebuilt at all.

The human and civic consequence fell on the city of Salisbury itself. A nerve agent attack in a populated area does not end when the victims are hospitalised. It leaves contaminated sites that must be identified, sealed, and cleaned. The decontamination of Salisbury and the surrounding area was a military-supported operation that ran for the better part of a year, involving the sealing of Skripal’s house, the Zizzi restaurant, the Mill pub, the bench, vehicles, and other locations. Businesses in the affected zone lost trade. Residents lived alongside cordons and personnel in protective suits. A small English city, chosen by Russia as the venue for an operation against one man, was turned into a contamination site, and the cost of restoring it, in money and in disruption, was borne entirely by Britain and its people. This is collateral damage of a kind that has no parallel in the targeted killings of India’s shadow war, where the violence is confined, by design, to a single person at a single point.

Reputational damage is the consequence that compounds over time. Before Salisbury, Russia could maintain, with some plausibility in some quarters, that allegations of state assassination abroad were Western propaganda. After Salisbury, that position collapsed. The combination of the official investigation and the open-source unmasking produced a body of public evidence so detailed that denial became performance rather than argument. Every subsequent Russian operation abroad, and every historical one, would now be read through the Salisbury template. The attack did not just fail to kill Skripal. It converted Russia’s clandestine reach from a matter of suspicion into a matter of documented record, and that conversion is permanent.

Seven Dimensions: Salisbury Measured Against India’s Shadow War

The analytical core of this article is a structured comparison. Salisbury and India’s shadow war are both extraterritorial operations conducted by states against individuals on foreign soil, and both sit outside the framework of open law. That shared category is what makes the comparison meaningful. What the comparison reveals, dimension by dimension, is that the two campaigns represent almost opposite philosophies of how such operations should be designed, and that India’s choices read, in retrospect, like a deliberate study of everything Russia got wrong in Wiltshire. Seven dimensions structure the comparison: weapon choice, collateral risk, forensic traceability, international reaction, target value, deniability, and strategic outcome.

A caution belongs at the head of this section and should not be skipped. To say that India’s operations are better designed than Russia’s is a statement about engineering, not ethics. Both campaigns kill people outside any courtroom. The legal and moral questions raised by extrajudicial killing are addressed elsewhere in this series, and they are not resolved by the observation that one state conducts such killings more cleanly than another. What follows is an operational autopsy, and operational autopsies are useful precisely because they are narrow.

One more point of method belongs here. The shadow war is not officially acknowledged by India, and the reconstruction of its pattern rests on open-source reporting, Pakistani investigations, and analytical inference rather than on any admitted record. Where this article describes the shadow war’s choices, it describes the pattern that the available evidence supports, not a confession. That uncertainty does not weaken the comparison; it is itself one of the findings. Russia’s operation can be reconstructed in granular detail because it failed to remain covert. India’s campaign can only be reconstructed as a pattern, with the operators unnamed and the chain of command invisible, because it has, so far, succeeded at remaining covert. The very fact that one campaign yields a minute-by-minute narrative and the other yields only a pattern is the clearest single measure of the gap between them. The comparison that follows should be read with that asymmetry in mind: it is not a contest between two documented programmes, it is a contrast between an operation that destroyed its own secrecy and a campaign that has preserved it.

Dimension One: Weapon Choice

Russia chose a fourth-generation military nerve agent. India’s shadow war, across the documented pattern of killings in Pakistani cities, uses conventional firearms, typically pistols, fired at close range by shooters who arrive and depart on motorcycles. The gap between these two choices is the single most important difference between the campaigns, because the weapon is not a neutral tool. It carries information.

A Novichok agent is, in effect, a return address. Its synthesis requires the precursor chemicals, the production knowledge, and the laboratory infrastructure of a state chemical weapons programme, and the Novichok family is bound so tightly to the Soviet and Russian programme that its identification at a crime scene functions as an attribution in itself. The moment Porton Down named the agent, the field of plausible suspects collapsed to one. A pistol carries no such information. A nine-millimetre round recovered from a body in Karachi is consistent with thousands of weapons held by thousands of actors, from criminal networks to sectarian outfits to the security forces of Pakistan itself. The conventional weapon does not point homeward. It points everywhere, and a weapon that points everywhere points nowhere in particular. India’s choice of the pistol is, read this way, a choice for a weapon that cannot testify against its user, and the contrast with Russia’s choice of a weapon that announces its origin is total. The full logic of the shadow war’s weapon and method selection is examined in the analysis of the modus operandi behind the covert eliminations.

Dimension Two: Collateral Risk

A nerve agent smeared on a public door handle and a pistol fired at a specific person at close range carry profoundly different collateral profiles. The Novichok attack harmed people far beyond its target. Yulia Skripal, who had no role in any of this, was critically poisoned. Detective Sergeant Nick Bailey, doing his job, was hospitalised. Dawn Sturgess, four months later and several miles away, was killed by the discarded delivery device. The agent contaminated a restaurant, a pub, a home, vehicles, and a bench, and the cleanup ran for the better part of a year. The weapon’s lethality was not confined to the moment of the attack or to the body of the target. It persisted, it spread, and it killed indiscriminately.

Close-range shooting, by contrast, is contained. The violence happens at a single location, at a single moment, to a single person, and it ends. There is no residue that poisons a bystander a season later. The shadow war’s documented killings in Pakistan, the pattern reconstructed in the decoded analysis of the unknown gunmen, have generally produced one casualty per operation: the designated target. This is not an accident of method. It is a property of method. India’s campaign, by selecting a weapon and an approach that confine harm to the intended individual, avoids the single most politically toxic feature of Salisbury, which is the harm done to people no one ever claimed deserved it. Dawn Sturgess turned the Salisbury operation from a contested assassination into an unambiguous atrocity. The shadow war, by confining its violence, has not handed its critics an equivalent.

Dimension Three: Forensic Traceability

The Salisbury operation left a forensic trail that ran in an unbroken line from the door handle to a major general in Moscow. The agent identified the state. The Novichok traces in the City Stay Hotel room identified the operators’ possession of the weapon. The closed-circuit television footage identified the operators’ faces and movements. The travel records identified their flights. The open-source investigation, building on all of this, identified their true names, ranks, decorations, unit, and commander. Every link held. The chain was complete and it was public.

Killings attributed to the shadow war, by every available account, produce the opposite forensic profile. The shooters are described in Pakistani reporting and investigations as unidentified men on motorcycles. No state laboratory signature attaches to a common pistol round. The closed-circuit television environment of Pakistani cities is far thinner than Britain’s, and what footage exists has not produced named, decorated officers traced to a named unit. The result is a pattern of cases that remain, in the formal sense, unsolved, attributed to persons unknown. For a covert operation, the unsolved file is the goal. It is the documentary expression of deniability. Salisbury produced a solved case, narrated in open source from door handle to high command. The shadow war produces unsolved cases, and the difference between a solved case and an unsolved one is the difference between an operation that has failed at its most basic professional task and one that has succeeded at it.

The forensic dimension also explains why the choice of operating environment is itself a strategic decision rather than a mere accident of geography. Salisbury showed that the same operation conducted in different countries produces radically different evidentiary outcomes. Britain’s density of surveillance cameras, its disciplined chemical analysis capability at Porton Down, its access to leaked travel and passport data, and the presence of investigative journalists able to exploit all of it combined to make the United Kingdom one of the worst possible places on earth to conduct a deniable killing. An operation that might have left only suspicion in a low-surveillance state instead left a complete documented chain. The shadow war’s theatre of operations, the cities of Pakistan, sits at the opposite end of that scale: thinner camera coverage, weaker forensic integration, and an investigative ecosystem under far more political pressure. A state planning an extraterritorial killing must therefore weigh not only the weapon and the method but the ground itself, and Salisbury is the case that made the cost of choosing the wrong ground unmistakable. Russia conducted a signature operation in a forensic panopticon. The result was inevitable.

Dimension Four: International Reaction

Salisbury produced the largest coordinated expulsion of Russian intelligence officers in history: around one hundred and fifty positions lost, twenty-eight countries plus NATO acting in concert, sanctions layered on top. The reaction was not merely large; it was unified. Western governments, often divided on how to handle Russia, found in Salisbury a case clear enough and outrageous enough to act on together.

India’s shadow war has generated diplomatic friction, but nothing remotely resembling a coalition. Pakistan has alleged Indian responsibility for the killings on its soil and has raised the matter in international forums. Reporting in Western outlets has examined the pattern. Yet there has been no coordinated expulsion of Indian diplomats, no multinational sanctions package, no NATO statement. Several factors explain the gap. The absence of a forensic smoking gun matters: it is difficult to organise a coalition around a pattern of unsolved shootings in the way one can organise it around a chemical weapon traced to a state. India’s strategic position matters: as a major economy and a partner that Western governments are actively courting as a counterweight to China, India enjoys a latitude that an isolated and sanctioned Russia does not. The nature of the targets matters too, and that is the subject of the next dimension. The point for this dimension is structural. Russia’s operation generated a unified international punishment; India’s campaign has not, and the difference in forensic traceability is a large part of why.

The contrast also exposes something uncomfortable about how international reaction actually works, and it should be stated honestly rather than glossed over. The scale of a response to an extraterritorial killing is not determined solely, or even mainly, by the gravity of the act. It is determined by the clarity of the proof, by the strategic value of the accused state to those who would have to punish it, and by the political sympathy that the target commands. Russia in 2018 was already a sanctioned adversary with few defenders in Western capitals; an attack attributed to it could be punished at low political cost. A state that occupies a more favourable position in the international system, that is being courted rather than contained, can conduct comparable operations and absorb a far milder reaction. This is not a moral principle. It is a description of how power shapes consequence, and Salisbury, precisely because it produced the maximum reaction, marks one end of a spectrum whose other end is occupied by campaigns that produce almost none. The shadow war sits near that quieter end, and it sits there partly on its operational merits and partly on the strength of India’s diplomatic position.

Dimension Five: Target Value

This dimension is where the two campaigns diverge most sharply in their underlying logic, and it is the dimension on which India’s operations are most defensible even to a sceptical audience. Russia poisoned a man who posed no current threat. Sergei Skripal was a retired, exchanged, spent intelligence asset. Whatever secrets he once held were a decade stale. He was killed, or targeted, for the signal his death would send to other potential defectors, not for anything he was doing or planning. The target value, measured in current threat, was effectively zero.

India’s shadow war, by the account India’s strategic community advances, targets the opposite kind of person. The men eliminated in Pakistan are presented as current, operational figures: commanders and facilitators of organisations such as Lashkar-e-Taiba and Jaish-e-Mohammed, men connected to ongoing recruitment, training, financing, and attack planning. The case of each target is laid out in the profile articles of this series, and the broader organisational context is set out in the guides to Lashkar-e-Taiba and Jaish-e-Mohammed. Whether one accepts that framing or rejects it, the structural difference is real. Russia’s operation cannot be defended as the removal of a present danger, because there was no present danger. India’s campaign can at least be argued on those terms, and an operation that can be argued as self-defence against active terrorism occupies very different political ground from an operation that can only be explained as the punishment of a long-closed betrayal. Target value is the dimension on which Salisbury is hardest to justify and the shadow war is easiest, and the contrast is not incidental. It is the heart of why the two campaigns have met such different international fates.

Dimension Six: Deniability

Deniability is the property that separates a covert operation from an act of war, and it is best understood as a spectrum rather than a switch. At one end sits the operation that can be denied with a straight face because no evidence contradicts the denial. At the other sits the operation whose denial is a transparent fiction. Salisbury collapsed to the second end. Russia denied responsibility, but the denial had to coexist with a named agent, named operators, a named unit, a named commander, and a televised interview in which the supposed tourists discredited themselves. Russian denial after Salisbury was not deniability. It was theatre, and everyone, including its intended domestic audience, understood it as theatre.

India’s posture on the shadow war sits much closer to the functional end of the spectrum. India has not claimed the killings. Indian officials have characterised them as the internal problem of a country that harbours terrorists, the implication being that violent men living in a violent ecosystem meet violent ends from any number of possible enemies. Because the operations leave unsolved cases rather than solved ones, India’s denial is not contradicted by a public evidentiary chain in the way Russia’s was. This is what functional deniability looks like: not the absence of suspicion, which no state can guarantee, but the absence of proof detailed enough to compel a response. Salisbury teaches that deniability is not a statement a state issues. It is a condition the operation either creates or destroys, and Russia’s operation destroyed it.

It is worth being precise about what deniability does and does not require, because the concept is often misunderstood. Functional deniability does not mean that no one suspects the responsible state. Everyone with a passing knowledge of the shadow war suspects India, just as everyone suspected Russia within days of Salisbury. The difference is between suspicion and the kind of proof that forces a government’s hand. A foreign ministry cannot expel diplomats, summon ambassadors, and assemble a punitive coalition on the basis of a strong suspicion; it needs a public, defensible evidentiary case that will survive scrutiny, because the act of punishment itself must be justified to domestic publics and to allies. Salisbury handed the British government exactly that kind of case, complete with a named agent, named operators, and a documented chain. The shadow war has handed Pakistan no equivalent. Pakistan’s accusations, however sincere, rest on pattern and inference, and pattern and inference do not move chancelleries the way a forensic chain does. Deniability, properly understood, is not about hiding from suspicion. It is about denying your adversary the evidentiary tool they would need to act on their suspicion, and that is a far more achievable goal than invisibility.

Dimension Seven: Strategic Outcome

The final dimension gathers the other six into a single question: did the operation advance the state’s strategic position. For Russia, the honest answer is no. Skripal survived, so the narrow objective failed. The signalling objective, the deterrence of future defectors, was achieved only at a price that no rational planner would have accepted in advance: the loss of around one hundred and fifty intelligence positions, fresh sanctions, the permanent conversion of Russia’s clandestine reputation from suspicion to documented fact, and the death of an innocent British woman that handed every Russian adversary a moral cudgel for years to come. Even if one grants that Salisbury frightened would-be traitors, the operation spent extravagantly to purchase that fear and damaged Russia’s actual operational capacity in the process.

India’s shadow war, measured on the same axis, presents a different picture. The campaign has, by India’s account and by the reconstructed pattern, removed a series of operational figures from terrorist organisations while keeping India’s diplomatic and economic relationships substantially intact. There has been no coalition, no mass expulsion, no sanctions package. Whatever one’s moral judgement of the killings, the campaign has not inflicted strategic self-harm on India in the way Salisbury inflicted it on Russia. The seven dimensions, taken together, deliver a consistent verdict. Salisbury is what happens when an extraterritorial operation is designed around signalling and conducted with a weapon and method that destroy deniability and inflict indiscriminate harm. The shadow war is what happens when such an operation is designed around containment, conventional means, and the preservation of the unsolved file. This is why the Salisbury case is the shadow war’s negative template, and why analysts who study India’s campaign keep one eye on Wiltshire.

Analytical Debate: Message or Failure

A genuine disagreement runs through every serious analysis of Salisbury, and it must be confronted directly rather than smoothed over. The disagreement is this: was the Salisbury operation a failure, or was it a success that only looks like a failure because observers are measuring it against the wrong objective. Resolving that question changes how the entire case should be read.

The failure interpretation is the one this article has largely advanced, and the case for it is strong. By the standard of a covert assassination, Salisbury failed comprehensively. The target lived. The operators were identified by name and rank. The weapon pointed straight back to the Russian state. An innocent woman was killed. Around one hundred and fifty intelligence positions were lost. The operation, on this reading, was a botch: Russia wanted Skripal dead and deniably so, and it achieved neither, exposing its tradecraft and its officers to the world in the process. The televised RT interview, widely seen as humiliating, is treated as the perfect emblem of an operation that could not even manage its own cover story.

The message interpretation runs the other way and deserves a fair hearing. On this reading, the operation’s true objective was never quiet, deniable elimination. It was a public demonstration of reach, addressed to Russia’s own intelligence personnel and to the wider community of potential defectors. If that is the objective, then several apparent failures become features. The use of Novichok, traceable precisely because it is a Russian signature, ensures that everyone understands who did this; an untraceable killing would not deter, because deterrence requires the audience to know the author. The exposure of the operators, on this reading, is regrettable but secondary, because the message was delivered regardless. Even Skripal’s survival does not fully negate the signal, because the attempt itself, and its unmistakable authorship, communicated that an exchanged traitor is never safe. Proponents of this reading point to Russia’s long institutional history, from the assassination of Trotsky to the polonium poisoning of Alexander Litvinenko in London in 2006, and argue that the Russian tradition has consistently valued the visibility of state killing over its concealment.

An honest adjudication concedes that the message interpretation captures something real but cannot be accepted in full. It is almost certainly correct that signalling and deterrence were central to why Skripal was targeted at all; the target value analysis above makes that nearly unavoidable, since there is no current-threat explanation for killing a spent asset. Where the message interpretation overreaches is in treating the operation’s exposure as costless or even helpful. Russia did not need to lose one hundred and fifty intelligence officers to send a message to its own personnel. It did not need to kill Dawn Sturgess. It did not need its decorated officers identified by name and traced to a unit and a commander. A state can signal reach without surrendering its European networks and without converting plausible deniability into documented guilt. The most defensible conclusion is that Salisbury was a hybrid that failed at the part it tried to keep deniable while succeeding at the part it wanted seen, and that the price of the visible success was wildly disproportionate to its value. A competent intelligence service does not accept that exchange. The fact that Russia did points to the third explanation raised at the start of this article: an autonomous clandestine unit with a standing mandate, acting with less political discipline than a more centralised system would have imposed. Salisbury, in the end, looks less like a calculated message and more like a capable unit doing what it was built to do, without anyone senior enough asking whether the message was worth the wreckage.

There is a sharper way to frame the same conclusion, and it is the frame that makes Salisbury most useful as a study object. Treat the two campaigns being compared in this article as two answers to a single design question: how should a state end a life across a border. Russia’s answer privileged the signal. India’s answer, by every available account, privileges the silence. A campaign built around the signal will, by its nature, accept exposure, because exposure is how the signal is delivered, and it will tolerate the costs of exposure as the price of communication. A campaign built around the silence will, by its nature, refuse the signature weapon, refuse the indiscriminate method, and refuse anything that converts suspicion into proof, because the entire value of the campaign depends on the absence of that conversion. Read this way, Salisbury was not a competent operation that suffered bad luck. It was a coherent operation that prioritised the wrong variable. It optimised for being seen, and it paid the full price of being seen, and the only genuine question is whether the deterrent value it purchased was worth that price. The weight of the evidence, from the lost networks to the dead civilian, says it was not.

Why It Still Matters

The Salisbury poisoning matters, years on, because it has become a permanent reference point in the professional study of extraterritorial operations, and because its lessons are being applied, consciously or not, by every state that conducts such operations.

A first reason it endures is that it established a new evidentiary environment. The Salisbury investigation demonstrated that the combination of dense surveillance infrastructure, leaked travel and passport databases, and open-source investigative journalism can unmask a clandestine state operation in public, against the wishes of a major intelligence power, and do it within months. This was not true, or not obviously true, before Salisbury. The implication for every intelligence service is sobering. The old assumption that an operation conducted carefully abroad would remain a matter of suspicion rather than proof no longer holds in environments rich in cameras and data. Any state planning an operation in a country like Britain must now assume that its operators’ faces, movements, flights, and ultimately identities are recoverable. This is part of why the contrast with operating environments such as Pakistan, where surveillance density is lower and investigative capacity is weaker, is operationally meaningful, and it connects directly to the broader question of how the shadow war’s targeted killings have unfolded over time.

The second reason Salisbury still matters is that it crystallised a doctrine of operational design by demonstrating its inverse. Intelligence services do not publish manuals titled how not to assassinate someone, but Salisbury functions as one. It teaches that the weapon must not testify against the user, which argues for conventional means over signature ones. It teaches that collateral harm is not merely a humanitarian failing but a strategic one, because the death of an innocent converts a contested operation into an indefensible one. It teaches that deniability is a condition created by operational choices, not a statement issued afterward. It teaches that the value of the target must be weighable as a present threat, because an operation against a spent asset has no defensible justification when it is exposed. These lessons are visible, in inverted form, in the design of India’s shadow war, and they are visible in the historical operations examined elsewhere in this series, from Mossad’s Operation Wrath of God to the American drone programme in Pakistan. Salisbury did not invent these principles. It proved their cost by violating them.

A further reason the case endures is that it changed the arithmetic of the decision to act, not merely the method of acting. Before Wiltshire, a state weighing an extraterritorial killing could treat exposure as a tail risk, an unlucky outcome to be hedged against. After Wiltshire, exposure in a high-surveillance environment had to be treated as the likely outcome, and the planning question shifted accordingly. The relevant calculation was no longer whether the action could be kept secret but whether the state could absorb the consequences once it was not. That reframing favours restraint, because it forces a planner to price in the diplomatic, economic, and reputational costs of a public unmasking before approval rather than after a failure. It also favours patience and careful target selection, since a state that knows it will probably be identified has a strong incentive to act only against targets whose elimination it could, if pressed, defend in public. By demonstrating the full cost of getting that calculation wrong, the Wiltshire case made the calculation itself unavoidable for every service that studied it.

A third reason concerns Skripal himself, and it is a quieter point. Sergei and Yulia Skripal survived, but the lives they had built were destroyed. Both were moved into protective custody at an undisclosed location, their identities and whereabouts now permanently guarded. Sergei’s home, the house on Christie Miller Road, became a contamination site. The retired man who had lived openly under his own name for eight years cannot do so again. In that sense the operation, even though it failed to kill, did not entirely fail to punish: it ended the life Skripal had, if not the life itself. For a series concerned with India’s shadow war, this is a reminder that the consequences of these campaigns are not confined to the body count. They reach into the question of whether anyone, anywhere, who has crossed a powerful state can ever again be considered safe, and that question hangs over the whole landscape of targeted killing, from Wiltshire to the streets of Pakistan mapped in the complete record of the shadow war’s eliminations. Salisbury is the case that made the question impossible to avoid, and that is why it still matters.

Frequently Asked Questions

Q: What happened in the Salisbury Novichok attack?

On 4 March 2018, the former Russian intelligence officer Sergei Skripal and his daughter Yulia were poisoned in Salisbury, a cathedral city in Wiltshire, England. They were exposed to a Novichok nerve agent that had been applied in gel form to the exterior handle of the front door of Skripal’s home on Christie Miller Road. Both collapsed on a public bench near a shopping centre and were rushed to hospital in critical condition. A police officer, Detective Sergeant Nick Bailey, was also poisoned while investigating the scene. The British government identified the agent as a military nerve agent of the Novichok class, attributed the attack to the Russian state, and charged two officers of Russian military intelligence. Months later, a British woman named Dawn Sturgess died after coming into contact with the discarded perfume bottle believed to have been used to carry the agent.

Q: Why did Russia poison Sergei Skripal?

Skripal was a former GRU colonel who had spied for Britain’s MI6 in the 1990s, was convicted of treason in Russia in 2006, and was freed in a 2010 spy swap. By 2018 he held no current secrets and posed no operational threat, which is precisely why the most persuasive explanation for his targeting is symbolic. The attack appears to have been intended as a message to Russia’s own intelligence personnel and to potential defectors: that betrayal carries a sentence which never expires and that being exchanged in a swap buys time but not lasting safety. Additional factors that analysts cite include the timing before a Russian presidential election and the World Cup, and the degree of autonomy enjoyed by the clandestine GRU unit that carried out the operation. The killing was about deterrence, not about neutralising a present danger.

Q: What is Novichok and why is it so dangerous?

Novichok refers to a family of fourth-generation nerve agents developed in the later decades of the Soviet chemical weapons programme. Nerve agents kill by blocking the enzyme that allows nerves to reset after firing, which drives the body into uncontrolled convulsions, fluid production, and respiratory and cardiac collapse. The Novichok agents were engineered to be highly potent and persistent. Their danger in the Salisbury context came from two properties. The first is lethality at very small doses. The second is persistence: the agent remained dangerous on surfaces for months, which is how Dawn Sturgess was killed nearly four months after the original attack. Because the Novichok family is so closely tied to the Soviet and Russian programme, the identification of the agent also functioned as a form of attribution pointing to the Russian state.

Q: Who carried out the Salisbury poisoning?

The operation was carried out by officers of the GRU, Russia’s military intelligence directorate. Two men travelled to Britain under the cover identities Alexander Petrov and Ruslan Boshirov. British prosecutors charged them, and open-source investigators at Bellingcat and The Insider subsequently identified Boshirov as Colonel Anatoliy Chepiga and Petrov as Dr Alexander Mishkin, both decorated GRU officers holding the title Hero of the Russian Federation. A third officer, a major general travelling as Sergey Fedotov and identified as Denis Sergeev, was assessed to have coordinated the operation. All three were linked to a clandestine GRU formation, Unit 29155, commanded by Major General Andrey Averyanov and tasked with disruptive operations and assassinations abroad.

Q: How does Salisbury compare to India’s shadow war?

Salisbury and India’s shadow war are both extraterritorial state operations against individuals on foreign soil, but they represent almost opposite philosophies of design. Russia used a signature chemical weapon; India’s campaign uses conventional pistols. Russia’s operation inflicted indiscriminate collateral harm and contaminated a city; the shadow war’s killings are confined to single targets. Russia left a forensic trail leading from a door handle to a major general; the shadow war leaves unsolved cases attributed to unidentified gunmen. Russia triggered a coordinated international punishment; India’s campaign has produced friction but no coalition. Russia targeted a spent asset; India targets figures it presents as currently operational. On every dimension of operational design, Salisbury is the negative template and the shadow war is its inverse, which is why analysts of India’s campaign study the Russian operation so closely.

Q: Why did Russia use a chemical weapon instead of conventional methods?

This is one of the most revealing questions about the case. Russia did not need a nerve agent to kill an unprotected pensioner; a staged accident or a conventional weapon would have done so with far less risk. The choice of Novichok, the most traceable weapon in Russia’s inventory, indicates that quiet deniability was never the operation’s primary aim. The weapon was part of the message. A signature agent ensures that the intended audience, Russia’s own intelligence community, understands who carried out the killing, because a deterrent signal only works if its author is known. The cost of that choice, however, was catastrophic: it converted the operation from a contested assassination into a documented chemical weapons attack and made coordinated international retaliation possible.

Q: What consequences did Russia face for Salisbury?

The consequences were severe and historic. Britain expelled twenty-three Russian diplomats, and a coordinated response by twenty-eight countries plus NATO followed, expelling around one hundred and fifty Russian diplomats and intelligence officers in total, the largest collective expulsion of its kind in modern history. The United States imposed sanctions specifically tied to the attack under chemical weapons legislation, and the European Union later sanctioned individuals connected to the operation. The decontamination of Salisbury ran for the better part of a year. Beyond these measurable costs, the operation permanently converted Russia’s clandestine reputation from a matter of suspicion into a matter of documented public record, a reputational loss that compounds with every subsequent operation.

Q: Did Russia want to be identified, or was it a failure?

Analysts genuinely disagree on this. One reading treats Salisbury as a botched operation: Russia wanted Skripal dead and deniably so, and achieved neither. The competing reading treats it as a deliberate message, in which the traceability of the weapon was a feature, because deterrence requires the audience to know the author. The most defensible adjudication is that the operation was a hybrid. Signalling and deterrence were almost certainly central to why Skripal was targeted, since there is no current-threat explanation for killing a spent asset. But the message interpretation overreaches when it treats the exposure of operators, the loss of one hundred and fifty intelligence positions, and the death of Dawn Sturgess as acceptable costs. A competent service can signal reach without that wreckage. Salisbury succeeded at the part it wanted seen and failed at the part it tried to keep hidden, at a price no rational planner would have accepted.

Q: What did Salisbury teach about extraterritorial operations?

Salisbury functions as a worked example of how not to conduct an operation abroad. It teaches that the weapon must not testify against the user, which favours conventional means over signature ones. It teaches that collateral harm is a strategic failure and not merely a humanitarian one, because the death of an innocent converts a contested operation into an indefensible one. It teaches that deniability is a condition created by operational choices rather than a statement issued afterward. It teaches that the value of the target must be defensible as a present threat. And it teaches that dense surveillance and open-source investigation can unmask a clandestine operation in public, against a major power’s wishes, within months. Every intelligence service now plans against this template.

Q: Why does India’s shadow war avoid Salisbury’s mistakes?

India’s campaign, whether by deliberate study or by sound instinct, inverts the Russian operation’s key errors. It uses conventional pistols, which carry no state signature, rather than a traceable military agent. It confines harm to single targets through close-range shootings, avoiding the indiscriminate contamination that killed Dawn Sturgess. It operates in an environment with thinner surveillance coverage, and it produces unsolved cases attributed to unidentified gunmen rather than solved cases with named operators. It targets figures it presents as currently operational rather than spent assets. The result is functional deniability and the absence of any coordinated international punishment. It is important to stress that this is a judgement about operational design, not about legality or morality, since extrajudicial killing remains extrajudicial killing regardless of how cleanly it is executed.

Q: Who was Dawn Sturgess and why did she die?

Dawn Sturgess was a forty-four-year-old British woman from Amesbury, near Salisbury, with no connection whatsoever to espionage, Russia, or Sergei Skripal. In late June 2018, nearly four months after the attack, her partner Charlie Rowley found what appeared to be a sealed box containing a perfume bottle. It was in fact the counterfeit perfume container that investigators believe had been used to transport and apply the Novichok, discarded after the operation. Rowley gave it to Sturgess, who applied what she thought was perfume to her wrists. She fell ill within fifteen minutes and died on 8 July 2018. She is the only fatality of the Salisbury operation, killed by the persistence of an agent that her killers had failed to use against their intended target and had simply thrown away.

Q: Did Sergei and Yulia Skripal survive?

Yes, both survived, though their survival was uncertain for a period and required intensive medical treatment. Yulia Skripal regained consciousness and was discharged from hospital in April 2018. Sergei Skripal, more severely affected, was discharged the following month. Their survival represents the failure of the operation’s narrowest objective: Russian military intelligence crossed a border to kill Sergei Skripal with a military nerve agent and did not succeed. After their recovery, both were moved to a protected location with new security arrangements, and their identities and whereabouts are now permanently guarded. The lives they had built in Salisbury were ended even though their lives were not.

Q: What is GRU Unit 29155?

Unit 29155 is a clandestine formation of the GRU, Russia’s military intelligence directorate, identified through investigative reporting as a dedicated team for disruptive operations and assassinations abroad. The unit was commanded by Major General Andrey Averyanov. Open-source investigations linked its officers not only to the Salisbury poisoning but to a series of other operations across Europe, including a poisoning attempt against a Bulgarian arms manufacturer and sabotage of an ammunition depot in the Czech Republic. The exposure of Unit 29155 was one of the most damaging consequences of the Salisbury investigation, because it revealed not just two operators but the existence of an institutional structure dedicated to exactly this category of work, complete with a named commander and a documented pattern of activity.

Q: How did Bellingcat identify the suspects?

Bellingcat, working with the Russian publication The Insider, used open-source methods to identify the men Russia presented as innocent tourists. Investigators began with the passport photographs and leaked Russian travel and passport databases. They noticed that the persona Alexander Petrov had no documented history before 2009, the hallmark of a constructed alias. Cross-referencing photographs, records, and other sources, they identified Boshirov as Colonel Anatoliy Chepiga and Petrov as Dr Alexander Mishkin, establishing their military careers, decorations, and connection to the GRU. The investigation demonstrated that a clandestine state operation could be unmasked in public, by journalists rather than governments, using data that the modern information environment makes available, and it set a precedent that every intelligence service now has to plan against.

Q: Were the Salisbury suspects ever brought to justice?

The two suspects were formally charged by British prosecutors with conspiracy to murder, attempted murder, and chemical weapons offences. They have not, however, faced trial, because they are in Russia and the Russian constitution prohibits the extradition of Russian citizens. This is a recurring pattern in cases of state-sponsored assassination: the home state shelters its operators, and prosecution in the victim state becomes impossible in practice. The charges nonetheless carry weight, because they establish an official legal account of the operation, and combined with the open-source identification of the officers and their unit, they ensure that the operation is fully documented even though no courtroom verdict against the operators is likely.

Q: Is Salisbury connected to the Litvinenko poisoning?

The two cases are not part of a single operation, but they belong to the same institutional tradition and are often analysed together. Alexander Litvinenko, a former Russian intelligence officer who had become a critic of the Kremlin, was poisoned in London in 2006 with polonium-210, a radioactive substance, and died after weeks of illness. A British inquiry concluded that the killing was probably approved at a senior level of the Russian state. Salisbury, twelve years later, followed a recognisable pattern: a former intelligence officer regarded by Moscow as a traitor, targeted on British soil with an exotic and traceable substance. Both cases point to a Russian institutional willingness to conduct visible, signature killings of perceived traitors abroad, and Salisbury is best understood as the most recent and most internationally consequential entry in that long tradition.

Q: What does Salisbury reveal about Russian intelligence culture?

Salisbury reveals an intelligence culture that, at least in this clandestine corner of the GRU, valued the visibility of state power over the discipline of concealment. The willingness to use a signature chemical weapon, to deploy decorated senior officers, to accept indiscriminate collateral risk, and to absorb the exposure of an entire unit suggests an institution operating with significant autonomy and limited political restraint. It also reveals a culture in which the punishment of perceived traitors carries an importance that overrides conventional cost-benefit calculation. Whether one reads the operation as a deliberate message or as the product of an under-supervised unit, it points to a system in which the appetite for demonstrative action outran the discipline required to conduct such action without strategic self-harm.

Q: Could a future operation repeat Salisbury’s mistakes?

It is possible but less likely, precisely because Salisbury has been studied so thoroughly. The operation’s failures are now a standard reference for intelligence professionals, and the lessons, namely avoid signature weapons, confine collateral harm, preserve genuine deniability, and choose targets defensible as present threats, are widely understood. The deeper risk lies not in ignorance of these lessons but in institutional dynamics: an autonomous unit with a standing mandate and weak political oversight can repeat such errors even when the lessons are known, because the failure at Salisbury was arguably one of restraint rather than knowledge. The clearest safeguard against another Salisbury is not better tradecraft alone but tighter political control over the decision to act, and that is a harder thing for any state to guarantee.

Q: Why was Salisbury chosen as the location of the attack?

The city was not chosen for any quality of its own. It was chosen because Sergei Skripal lived there. After his release in the 2010 spy swap, Skripal settled in the Wiltshire cathedral city and lived openly under his own name, and the operation simply followed him to where he was. The choice carried an irony the planners appear not to have weighed. The city sits only a short distance from Porton Down, the British government’s chemical and biological defence laboratory, which meant that the one place in the country with the fastest possible access to world-class nerve agent analysis was effectively next door to the crime scene. The agent was identified within days. A different city would not have saved the mission, because Britain’s surveillance density and investigative capacity are national rather than local, but the proximity of Porton Down is a small emblem of how poorly the ground had been assessed.

Q: Did the Salisbury attack damage Russia’s relationships beyond the West?

For the most part, the coordinated punishment of Russia after the poisoning was a Western phenomenon. The mass expulsions and the sanctions came overwhelmingly from European states, North America, Australia, and partners closely aligned with them. Much of the rest of the world declined to join, and Russia retained working relationships with states across Asia, Africa, the Middle East, and Latin America. This pattern matters for the comparison at the heart of this analysis, because it shows that even the largest coordinated reaction in the modern history of expulsions was bounded by alignment and interest rather than universal. A state’s exposure to punishment depends heavily on who is doing the punishing and on how much of the world has reason to act. It is a reminder that international reaction, even at its most dramatic, is never the same thing as international consensus, and that the geography of a state’s alliances shapes the price it pays for a mission gone wrong.

Q: How long did the Salisbury cleanup take and what did it involve?

The decontamination of Salisbury and the nearby town of Amesbury was a prolonged, military-supported effort that ran for the better part of a year after the attack. Specialist teams had to identify every site the agent, or the contaminated victims and responders, had reached, then seal and treat each one. The list included Sergei Skripal’s house, the Zizzi restaurant and the Mill pub the family had visited, the bench where the Skripals collapsed, vehicles, an ambulance station, and other locations. Some items and surfaces had to be removed or destroyed rather than cleaned. The work required hundreds of specialists, the closure of public spaces for extended periods, and a substantial public cost borne by Britain. Businesses inside the cordoned zones lost trade for months. The scale of the response is one of the clearest illustrations of how a nerve agent attack imposes costs far beyond its intended target, turning a single act against one man into a civic emergency for an entire community.

Q: What does the Salisbury case tell us about open-source intelligence?

Salisbury is widely regarded as a landmark in the rise of open-source investigation. The identification of the operators was not achieved by a government agency releasing classified material; it was achieved by journalists and researchers working with publicly available and leaked data, including passport records, travel databases, photographs, and registration documents. Bellingcat and The Insider showed that a small team without state powers could reconstruct the true identities, ranks, and unit of officers from a major intelligence service. The implication reaches well beyond this one case. It means the modern information environment, in which travel data, images, and records circulate and can be cross-referenced, has eroded the secrecy that clandestine operators once relied on. For intelligence services, the lesson is that the public, not just rival governments, can now hold their work up to the light, and that a cover identity which would have survived in an earlier era can be dismantled by determined civilians with a laptop.