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A 13-day confrontation between the United States and the Soviet Union in 1962 over Soviet ballistic missiles deployed in Cuba.

Leader of the Soviet Union from the mid-1920s until his death in 1953; under his leadership, the USSR became a global superpower.

American foreign policy to stop Soviet imperialism during the Cold War, established in 1947; it was the start of the containment policy to stop Soviet expansion.

An attempt by the Soviet Union in 1948-1949 to limit the ability of France, Great Britain, and the United States to travel to their sectors of Berlin, which lay within Russian-occupied East Germany.

Leader of the Soviet Union during part of the Cold War (1953-1964); known for his role in the Cuban Missile Crisis and the de-Stalinization of the Soviet Union.

Conflict between North Korea (with the support of China and the Soviet Union) and South Korea (with the support of the United Nations, principally from the United States) from 1950 to 1953.

The North Atlantic Treaty Organization, a military alliance formed in 1949 between the United States, Canada, and several Western European nations to provide collective security against the Soviet Union.

A collective defense treaty established by the Soviet Union and seven other Eastern Bloc socialist republics of Central and Eastern Europe in 1955.

The first artificial Earth satellite, launched by the Soviet Union in 1957, marking the start of the space race.

A prolonged conflict from 1955-1975 between the communist government of North Vietnam and South Vietnam and its principal ally, the United States.

The practice of making accusations of subversion or treason without proper regard for evidence; associated with Senator Joseph McCarthy during the early 1950s.

37th President of the United States who engaged in détente with the Soviet Union and opened relations with China.

A period of improved relations between the United States and the Soviet Union in the 1970s, marked by the signing of agreements to limit nuclear arms.

A failed military invasion of Cuba in 1961 by Cuban exiles supported by the U.S. government.

The last leader of the Soviet Union, whose policies of glasnost ('openness') and perestroika ('restructuring') ultimately led to the dissolution of the Soviet Union in 1991.

40th President of the United States known for his staunch anti-communist stance and for initiating the Strategic Defense Initiative (SDI).

The shooting down of a U.S. U-2 spy plane by the Soviet Union in 1960, leading to a diplomatic crisis.

Term popularized by Winston Churchill to describe the division between the democratic nations of the West and the communist nations of the East.

An American initiative to aid Western Europe, in which the United States gave over $12 billion in economic assistance to help rebuild Western European economies after the end of World War II.$

The 20th-century competition between two Cold War rivals, the Soviet Union and the United States, for dominance in spaceflight capability.

A guarded concrete barrier that physically and ideologically divided Berlin from 1961 to 1989.

The February 1945 summit where Roosevelt, Churchill, and Stalin discussed the post-World War II reorganization of Europe.

35th President of the United States, during whose presidency critical Cold War events like the Bay of Pigs Invasion and the Cuban Missile Crisis occurred.

A United States policy using numerous strategies to prevent the spread of communism abroad.