The Wall suggested that the Soviets were no longer interested in unifying Berlin under communist rule, as Khrushchev had originally demanded in November 1958.
The Wall was a humiliation for the Soviet Union and a propaganda victory for the West, as it suggested that East Germans preferred living in capitalist West Germany and had to be forced to stay in communist East Germany.
Khrushchev mistakenly thought that Kennedy had shown weakness by allowing the Wall to be built, and this encouraged him to think about deploying missiles in Cuba.
The construction of the Berlin Wall filled the last remaining gap in the Iron Curtain and divided Europe into two different alliances, two Germanys, two different ideologies, and two sides of the Iron Curtain.
During the Cuban Missile Crisis the world came very close to nuclear war, and relations between the United States and the Soviet Union improved after the crisis, leading to a period of cooling tensions, known as détente.
The short-term consequences of the Cuban Missile Crisis included the survival of communist Cuba, the weakening of the Soviet Union, and the improvement of US ‘doves’.
Both Romania (led by Nicolae Ceauşescu) and Yugoslavia (led by Josip Broz Tito) condemned the invasion and signed alliances with communist China, dividing the communist world.
The USA and the Soviet Union also signed the Outer Space Treaty in 1967, which limited the deployment of nuclear weapons in space, and the Nuclear Non-Proliferation Treaty in 1968, which prevented nuclear weapons being given to other countries.
Communist leaders, such as Jacques Duclos in France and Enrico Berlinguer in Italy, were appalled by the Soviet invasion, leading France and Italy to end their links with the Soviet Union.
Khrushchev agreed to the deal: missiles withdrawn in return for USA agreeing never to attack Cuba and taking its missiles out of Italy and Turkey on 28 October 1962.