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Ex-MI5 Chief Says UK May Already Be at War with Russia

  • Baroness Manningham-Buller, who once led MI5, suggested that it could be accurate to view the UK as already engaged in a conflict with Russia, given recent acts of hostility.
  • This view follows Russia's 2022 invasion of Ukraine and ongoing hybrid warfare tactics including cyberattacks, sabotage, and covert operations on UK soil.
  • Manningham-Buller supported UK defence advisor Fiona Hill's warning of a new kind of conflict, highlighting Russia's extensive intelligence work and physical attacks.
  • She recalled the 2006 poisoning murder of former FSB agent Alexander Litvinenko in London, ordered within a year of her 2005 meeting with Putin, as evidence of Kremlin hostility.
  • These developments imply sustained, multifaceted Russian aggression that challenges UK national security and suggests a state of undeclared war.
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The British Sea could already be found in the war with Russia because of the intensity and severity of cyber attacks, satellites and other host activities that Moscow has organized against it, according to an former MI5 chief, reports The Guardian.

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nationalsecuritynews.com broke the news in on Monday, September 29, 2025.
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