belief that if South Vietnam fell to communism, other countries in the region would also fall to communism
SALT Agreement (Strategic Arms Limitation Talks)
treaty between the US and the Soviet Union to limit the number of nuclear warheads and missiles.
after World War II, long period of intense rivalry between the Soviet Union and the United States.
the policy of trying to prevent the spread of Soviet influence beyond where it already existed.
President Truman's policy of giving American aid to nations threatened by communist expansion.
wall built by the communist East German government in 1961 to seal off East Berlin from West Berlin.
North Atlantic Treaty Organization (NATO)
alliance formed in 1949 by the United States and Western European nations to fight Soviet aggression.
military alliance, established in 1955, of the Soviet Union and other communist states in Europe.
nation with the military, political, and economic strength to influence events worldwide.