There wasn't a literal threat. The Russians, (Whom we didn't like very much because of their communism) were sending nuclear missiles to Cuba, which is very close to the USA, and had a somewhat crazy guy as president. But, the US created a blockade to keep any ships from getting into Cuba. But, Russia's navy went full steam ahead towards the Blockade... Then Finally at the last moment, The Soviets turned back. The world was at peace again.
So, To answer the question... We didn't like communism, and the world new that. Russia was communist. Them sending Nuclear weaponry to a crazy guy, made us worried about a World War 3. Therefore that was the threat.
Soviets were establishing nuclear missile sites in Cuba.
Cuban Missile Crisis
The Cuban Missile Crisis
what questions about nuclear weapons did the Cuban missile crisis raise in Canada's minds? why did these questions divide Canadians?
Soviets build nuclear missile sites in Cuba.
Soviets were establishing nuclear missile sites in Cuba.
Cuban Missile Crisis
The Cuban Missile Crisis
the cuban missile crisis.
President Kennedy removed nuclear missiles from Turkey to resolve the crisis
President Kennedy removed nuclear missiles from Turkey to resolve the crisis
what questions about nuclear weapons did the Cuban missile crisis raise in Canada's minds? why did these questions divide Canadians?
USSR was placing IRBMs with nuclear warheads in Cuba.
Soviets build nuclear missile sites in Cuba.
Nuclear war (WW3).
the cuban missile crisis.
ss4 and ss5 nuclear missiles