Fear of nuclear annihilation was very real during the Cold War, when the world was dominated by two opposing ideological blocs. NATO was a critical player in this global, high-stakes chess game.
The Pâques affair
George Pâques spent two decades feeding French and NATO secrets to the Soviets before he was revealed as a spy in 1963. His trial caused a sensation in his native France. Declassified documents reveal the story from NATO's side.
A short history of NATO
Defence and deterrence