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.
It was the greatest threat to world peace in all of history. If the US were to have invaded cuba in response to the Nuclear weapons found in Cuba, the US Army would have to face the majority of he cuban population, under Castro's militia policy all members of the population owned weapons and were apart of a militia to defend the government. Along with the cuban militia and army was the 45,000 Soviet soliders station in cuba to operate the nuclear weapons and to protect the new pro-communist government. If an operation were to have begun the USSR would have most likely responded to their ally and their 45,000 soldiers under attack by declaring war, hopefully the confrontation wouldn't have escalated to nuclear war, in which the Soviet Union would have most likely be under severe destruction due to the US's large amount of nuclear weapons and their strategic placement. Another even took place after the embargo was started, where a soviet nuclear submarine carrying nuclear weapons was hit by a depth charge by a US battleship, and power was lost in the submarine and the soldiers inside believed the war had started and were about to launch their nuclear weapons, thankfully a political officer on the submarine convinced the commanding officer to not fire, saving the world from somewhat destruction. this crisis represented the most scares moment in history.
The USA and USSR had enough missiles to destroy the world over and over.
It was the closest the world has ever come to World War Three!
russia put nuclear missiles in cuba, near the u.s., and said that if we did anything they didn't like they would start a nuclear war with us.
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.
ss4 and ss5 nuclear missiles
Nuclear war (WW3).
the cuban missile crisis.