The Cold War was to dominate international affairs for decades and many major crisis occurred, like the: The Cuban Missile Crisis, Vietnam, Hungary, and the Berlin Wall being just some.
Joseph McCarthy, from, November 14, 1908, was an American politician who served as a Republican U.S. Senator from the state of Wisconsin from 1947 until his death in May 2, 1957.
Nuclear War
A nuclear war is a war, in which countries fight with nuclear weapons. A nuclear war has never happened, but because nuclear weapons are super powerful and could cause destruction throughout the whole world, the possibility of nuclear war has had a great effect on international politics.
USSR
USSR stands for The Union of Soviet Socialist Republics. There was a rivalry between the USSR and the USA that played out globally. They, the USSR, wanted to take over the world.