After the Second World War finally came to an end in 1945, another conflict immediately began brewing on the global stage: the Cold War, a tense ideological and political struggle between the Americans and the Russians that would dominate international relations for decades. And though it was called a "cold" war, as opposed to an openly shooting and bombing conflict like #WWII, there was one absolutely terrifying moment when it came dangerously close to not just becoming a real, active war, but