1. What was the Berlin Blockade and why did the Soviet Union implement it?

2. How did the Western Allies respond to the Berlin Blockade without risking military confrontation?

1. What two German states were created after the Berlin Blockade ended and what did this division represent?

1. Why did East Germany construct the Berlin Wall and what was its impact between 1961 and 1989?

2. What does the mass exodus of East Germans to West Germany reveal about the appeal of the two systems?

1. What were NATO's original purpose and membership, and how did it function as a military alliance?

1. How was the Warsaw Pact structured and what role did Moscow play in coordinating its member nations?

2. Which communist countries resisted Soviet control and how did they demonstrate their independence?

1. What were SEATO and CENTO and what geographic regions did they aim to protect from communist expansion?

2. Why did the United States form alliances with more than 40 states during the Cold War?

1. What triggered the Korean War and why was the Soviet Union absent during the UN vote to defend South Korea?

2. How did China's entry into the Korean War change the conflict and what was the outcome?

3. What role did the superpowers play in the Korean War without directly fighting each other?

1. How did the U.S. policy of containment lead to increasing American military involvement in Vietnam?

2. What was the domino theory and how did it influence President Johnson's decision to escalate the war?

3. What problems did the United States face in supporting South Vietnam's government?

1. How did Angola's ethnic divisions and colonial borders contribute to civil war after independence?

2. Which superpowers and regional powers supported different ethnic groups in Angola's civil war?

1. What was the Contra War and how did U.S. support for the Contras reflect Cold War tensions in Central America?

1. What was the Bay of Pigs invasion and why did President Kennedy authorize it?

2. How did the failure of the Bay of Pigs invasion affect Cuba's relationship with the Soviet Union?

1. Why did Soviet Premier Khrushchev place nuclear missiles in Cuba and what was his justification?

2. How did President Kennedy respond to the discovery of Soviet missiles in Cuba and what was the outcome?

3. What did the Cuban Missile Crisis reveal about the dangers of nuclear weapons and how did it change U.S.-Soviet relations?

1. What were the Nuclear Test-Ban Treaty and the Nuclear Non-Proliferation Treaty and what did each aim to accomplish?

2. How did public concern about nuclear weapons lead to international agreements limiting nuclear testing and proliferation?