June 1945, United States and Soviet Union joined with 48 other countries in forminf what is named "United Nations". It was intended to protect memebers against agression. The united Nations was based in New yor.
1947, Truman Doctrine caused a great amount of controversy which oppoents object american interfence in other nations affair. Doctirine was the official declaration of the Cold War. The doctrine for trumans support for countires that rejected communism was called Trumans Doctrine.
Warsaw Pact formed
1947, Marshall plan is a assistance program that was propsed by U.S. secretary of State George Marshall. The United States proposed of giving aid to needy European countries. Marshall Plan would provide foos, machinery, and materials to rebuild Western Europe.
1949, North Atlantic Treaty Organization abbreviated (NATO) is a organization where ten western european nations joined with the US and Canada. The NATO was made to form a defensive military aliance. All memeber nations would be met with armed forces against any NATO member attcked on.
1955, Soviet Union, East Germany, Czechoslovakia, Poland, Hungary, Romania, Bulgaria, and Albania were all part of a pact. The Soviet Union saw NATO as a threat and formed its own alliance. Warsaw pact formed a treaty of friendship and was a collective defence treaty.
1957-1975, 20th century, United States and Soviet Union competed for influence and supermacy in spaceflight capability. Cold War rivals began to develop technology that could be used to explore space. After almost two decades the two superpowers began to cooperate in space exploration.