* Increased tensions between the United States and the Soviet Union. The Cuban Missile Crisis brought the two superpowers to the brink of nuclear war. The crisis led to a breakdown in communication and trust between the two countries.
* The nuclear arms race accelerated. In response to the Cuban Missile Crisis, both the United States and the Soviet Union began to build up their nuclear arsenals. The arms race continued for decades and contributed to the Cold War.
* The United States and the Soviet Union agreed to a number of arms control treaties. In an effort to reduce the risk of nuclear war, the United States and the Soviet Union signed several treaties, including the Limited Nuclear Test Ban Treaty and the Strategic Arms Limitation Treaty.
* The Cuban Missile Crisis led to the creation of the "hotline" between the United States and the Soviet Union. The hotline is a direct communication link between the two countries that is used to prevent misunderstandings and miscalculations that could lead to nuclear war.
* The Cuban Missile Crisis helped to bring about the end of the Cold War. The crisis showed the leaders of both the United States and the Soviet Union that nuclear war was too dangerous and that they needed to find a way to coexist peacefully. The Cold War ended in 1991.