Britain secured the largest expulsion of Russian diplomats in history by sharing “unprecedented degrees of intelligence” with dozens of foreign countries about the attempted killing of former spy Sergei Skripal. Nearly 30 countries and international organizations, including the European Union and the North Atlantic Treaty Organization, have expelled or refused to accredit over 150 Russian diplomats in the past 72 hours. The coordinated move came in response to the alleged attack on Skripal, a Russian former intelligence officer who has been living in England since 2010. Skripal left Russia after he was released from prison as part of a spy swap between Russia, the United Kingdom and the United States. He had previously been caught spying on Russia for Britain’s Secret Intelligence Service, known as MI6. Skripal, 66, and his daughter Yulia, 33, are currently in a comatose state in hospital.
The United States, Canada and Australia joined most European countries in expelling Russian spies, after Britain accused Moscow of using a Soviet-era nerve agent to attack the Skripals. But according to a senior British government official, the coordinated expulsions were not coincidental. The official, who refused to be named, told The Financial Times that the British government took the unprecedented decision to share “unprecedented degrees of intelligence” with dozens of countries in order to convince them to take action against the Kremlin. Shared information included complete intelligence assessments of Russian activities. Complete intelligence assessments are rarely —if ever— shared by nations. The latter typically share headline assessments —short snippets of longer analyses produced by their intelligence agencies— with allied nations. But in this case, British officials were authorized to share complete intelligence reports along with underlying data, which included a “detailed scientific analysis of the nerve agent used in the attack”, said The Financial Times.
Sharing complete intelligence reports runs the risk of revealing how much a nation knows about the secret activities of its adversaries, and may end up harming its intelligence-collection efforts. But the paper said that the complete intelligence shared with dozens of countries around the world convinced them that “there was no plausible alternative other than […] the Russian state” was behind the attack on the Skripals. Moreover, said the paper, London shared intelligence with foreign governments that pointed to the existence of an “explicit” state-backed assassination program run by the Kremlin. The program allegedly includes targets in numerous countries worldwide, said The Financial Times. The Russian government has vehemently rejected London’s assertions and has suggested that the attack on the Skripals was part of a British intelligence operation aimed at turning Russia into an international pariah.