occured after the end of WWII, when political and military tensions between the United States of America (capitalism) and the Soviet Union (communism) became very high and lasted until the fall of the Soviet Union (1980's). Though there was never any physical warfare involved, both sides felt threatened by the other, especially when it came to nuclear weapons. The parties involved in this war included The United States along with other countries of the Western world, against the Soviet Union and its satellite countries. However, they did indirectly attack each other during the Korean war, the Vietnam war, and when Afghanistan's freedom soldiers attacked the Soviet Union, the USA went as far providing the weapons that the freedom warriors used. The only major time the Cold War ever escalated between the United States and the Soviet Union was during the Cuban Missile Crisis. In 1972 President Nixon and Soviet leader Leonid Brezhnev signed a SALT agreement which helped limit the number of neuclear weapons that each country could have. The Cold war was ironically one of the longest periods of peace between two great powers. The Cold War gave way to the American people's deterance from international politics given the unpopularity of the Vietnam War. But ironically enough it was at this time the US government self inserted itself as a policing power or balance power between the two communist countries; USSR and China. The Cold War also helped create the Space Race (with Sputnik) and as a result gave birth to NASA.