1. Cold War
2. Containment Policy- Truman created measures to prevent any extension of communist rule to other countries.
1. Potsdam Conference- A conference that included, Truman, Attlee, and Stalin to discuss the Soviets holding free elections in Poland.

2. Cold War
4. Marshall Plan- a U.S. plan provided aid to all European nations that needed it and to stop the Communist party from growing in Europe.
3. Truman Doctrine- a U.S. policy providing economic and military aid to free nations (non-communist) threatened by internal or external opponents.

3. Cold War 5. North Atlantic Treaty Organization (NATO) -
6. Korean War-
On June 25, 1950, North Korean forces swept across the 38th parallel in a surprise attack on South Korea.
5. North Atlantic Treaty Organization (NATO) -
Western European nations join with the US and Canada to form a defensive military alliance to stop Soviet aggression.

4. Cold War
8. McCarthyism- Unfair tactic of accusing people of disloyalty or being communist without providing evidence.
7. Joseph McCarthy-
A Republican senator, who was an anti-communist activist and believed communist were taking over the government.

5. Cold War 10. Eisenhower Doctrine-
The U.S. would defend the Middle East against an attack by any communist country.
9. Warsaw Pact- A military alliance formed in 1955 by the Soviet Union and its Eastern European satellites; formed because West Germany was allowed to rearm and join NATO.

6. Cold War
11. Bay of Pigs- was an unsuccessful attempt by United States-backed Cuban exiles to overthrow the government of the Cuban dictator Fidel Castro.
12. Cuban Missile Crisis- was the closest the world ever came to nuclear war. However, due to President John F. Kennedy and Premier Nikita Khrushchev, war was averted.

7. Cold War 14. Tonkin Gulf Resolution-
A resolution adopted by congress in 1964, giving the president broad powers to wage war in Vietnam.
13. Vietnam War- The longest war in which the United States took part. The war began in 1954 and ended in Communist-ruled North Vietnam wanted to end U.S. support of the noncommunist South Vietnam and to unite the north and south into a single nation. The United States and the South Vietnamese army tried to stop them.

8. Cold War
15. War Powers Act- A law enacted in 1973, limiting a president’s right to send troops into battle without consulting Congress.
them.