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Revealed: The KGB plot to poison loch with radioactive waste… then blame it on American nuclear subs CND peaceniks were campaigning to ban from Britain

Daily Mail, By MARK HOOKHAM, 24 August 2025

The KGB secretly plotted to attack the UK at the height of the Cold War by polluting Scotland’s coastline with radioactive waste, it was revealed this weekend.

Masterminded by a Soviet spy based in London, the plan involved dumping nuclear waste into Holy Loch on the Clyde, which was a crucial base for US nuclear-armed submarines.

The proposed attack was designed to fracture the UK’s ‘special relationship’ with America, by falsely implicating the US military in a devastating radioactive incident, and to stoke Britain’s anti-nuclear movement.

Details of the shocking plot have been unearthed from declassified FBI files by security expert Richard Kerbaj and are revealed in an explosive book about the extraordinary life of Oleg Lyalin, a Soviet agent who defected from the KGB in 1971.

Lyalin claimed to be a ‘knitwear’ specialist with Russia’s trade delegation in London. But in reality he was a spy attached to Department V, a top secret KGB unit tasked with assassinations, kidnappings and sabotage.

A heavy-drinking partygoer engaged in a string of extramarital affairs, Lyalin defected, aged 33, after his wife secretly told his Soviet colleagues that he was a liar and a cheat and that he was dissatisfied with his work for the KGB.

During his debriefing by MI5 he revealed how he had been tasked by Moscow with drawing up plans for a series of attacks to destabilise the UK and spread panic if a war looked imminent.

Lyalin’s bombshell revelations led to the UK’s expulsion of 105 suspected Soviet intelligence officers from Britain – the largest ever such expulsion by a single country and a turning point in MI5’s fight against Soviet spy networks during the Cold War.

The KGB agent’s dramatic defection came at the height of the Cold War, with the West and the Soviet Union locked in an arms race amid fears of nuclear conflict.

Official MI5 files on Lyalin remain under lock and key in Britain. However, information the Security Service passed to the FBI has now been unearthed by Kerbaj after painstaking research.

A file with hundreds of pages of intelligence reports and memos related to Lyalin’s defection gathered dust in an FBI warehouse until it was declassified in 2018.

One three-page FBI report, written in September 1971 and stamped ‘Secret’, revealed how ‘Lyalin revealed that on one occasion a proposal was submitted to headquarters for an operation to contaminate Holy Loch with radioactive material with a view to implicating US Naval forces’.

Holy Loch, a sea loch 25 miles from Glasgow, was used by the US Navy as a ballistic missile submarine base between 1961 and 1992.

Home to up to ten submarines carrying Polaris nuclear missiles, a floating dry dock and a depot ship, it was the epicentre of protests by the Campaign for Nuclear Disarmament (CND).

Crucially, unlike other KGB plans designed to sow chaos after the outbreak of war, the plot to poison Scottish waters would have been launched during peacetime.

The Kremlin had already targeted the base, obtaining a secret submarine manual in 1967, which led to the arrest and jailing of three KGB agents.

In his book, entitled The Defector, Kerbaj writes that the KGB ‘believed they could stoke the ongoing fears held by anti-nuclear protesters, who had been warning for years about the potential release of radioactive debris from the nuclear submarines in the Firth of Clyde’.

CND and other anti-nuclear protesters had established a camp on Holy Loch and tried to intercept US support ships using kayaks.

In May 1961, Michael Foot, one of the founders of the CND who later became Labour Party leader, led 2,000 people in a huge protest against the submarines in nearby Dunoon. Around 350 protesters were arrested later that year during another big demonstration.

The declassified FBI documents reveal how Lyalin’s audacious proposal required approval from the Central Committee of the Communist Party in Moscow…………………………………………………………………………………………………………………………… https://www.dailymail.co.uk/news/article-15027913/KGB-plot-poison-loch-radiation-blame-American-nuclear-subs-CND-peaceniks-campaigning-ban-Britain.html

August 25, 2025 - Posted by Christina Macpherson | Russia, secrets,lies and civil liberties, UK