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GED Social Studies World Wars, the Cold War, and Foreign Policy Summary

Checked 10/27/26

World Wars, the Cold War, and Foreign Policy: key points

  • The U.S. entered World War II after the attack on Pearl Harbor (1941).
  • Containment aimed to stop the spread of communism.
Importance
★★★★☆ (4 / 5)
Weight
About 2 of 8 United States History questions (20%)

World War I and World War II, isolationism, wartime civil liberties, the Cold War and containment, and American foreign policy.

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World Wars, the Cold War, and Foreign Policy: 7 sample questions

Practice questionReviewedUnited States History › World Wars, the Cold War, and Foreign Policy★★★★☆

Question 1. Which countries were the main Axis Powers in World War II?

  1. ① France, China, and Canada
  2. ② The United States, Britain, and the Soviet Union
  3. ③ Germany, Austria-Hungary, and the Ottoman Empire
  4. ④ Germany, Italy, and Japan
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Answer: ④ Germany, Italy, and Japan

Key point: WWII Axis: Germany, Italy, Japan

In World War II (1939-1945), the Axis Powers were led by Germany, Italy, and Japan. The Allied Powers included the United States, Great Britain, the Soviet Union, and China.

Wrong choices

  • France, China, and Canada: France, China, and Canada fought on the Allied side.
  • The United States, Britain, and the Soviet Union: The United States, Britain, and the Soviet Union were the main Allied Powers.
  • Germany, Austria-Hungary, and the Ottoman Empire: Germany, Austria-Hungary, and the Ottoman Empire were the Central Powers in World War I.
Practice questionReviewedUnited States History › World Wars, the Cold War, and Foreign Policy★★★★☆

Question 2. The Cold War was a long period of tension between which two countries?

  1. ① The United States and Japan
  2. ② Britain and France
  3. ③ The United States and the Soviet Union
  4. ④ Germany and Italy
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Answer: ③ The United States and the Soviet Union

Key point: Cold War: United States vs. Soviet Union

The Cold War (about 1947-1991) was a rivalry between the United States, which supported capitalism and democracy, and the Soviet Union, which supported communism. The two sides never fought each other directly in a full war, which is why it is called "cold." It ended when the Soviet Union collapsed in 1991.

Wrong choices

  • The United States and Japan: The United States and Japan became allies after World War II.
  • Britain and France: Britain and France were allies during the Cold War.
  • Germany and Italy: Germany and Italy were not the two sides of the Cold War.
Practice questionReviewedUnited States History › World Wars, the Cold War, and Foreign Policy★★★★☆

Question 3. What was the Marshall Plan?

  1. ① A plan to divide Germany into zones
  2. ② U.S. economic aid to help rebuild Western Europe after World War II
  3. ③ A plan to build the Berlin Wall
  4. ④ A military alliance between the United States and Western Europe
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Answer: ② U.S. economic aid to help rebuild Western Europe after World War II

Key point: Marshall Plan: aid to rebuild Western Europe

The Marshall Plan (begun in 1948) gave billions of dollars to Western European countries to rebuild after World War II. The United States hoped strong economies would make communism less attractive.

Wrong choices

  • A plan to divide Germany into zones: Germany was divided by agreements among the Allies, not by the Marshall Plan.
  • A plan to build the Berlin Wall: East Germany built the Berlin Wall in 1961.
  • A military alliance between the United States and Western Europe: The military alliance was NATO, formed in 1949.
Practice questionReviewedUnited States History › World Wars, the Cold War, and Foreign Policy★★★★☆

Question 4. What event led the United States to enter World War II?

  1. ① The sinking of the Lusitania in 1915
  2. ② Japan's attack on Pearl Harbor in December 1941
  3. ③ Germany's invasion of Poland in 1939
  4. ④ The Berlin Blockade in 1948
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Answer: ② Japan's attack on Pearl Harbor in December 1941

Key point: Pearl Harbor (Dec. 7, 1941) brought the U.S. into WWII

On December 7, 1941, Japan attacked the U.S. naval base at Pearl Harbor, Hawaii. The next day, Congress declared war on Japan. Germany and Italy then declared war on the United States.

Wrong choices

  • The sinking of the Lusitania in 1915: The sinking of the Lusitania was part of the lead-up to World War I.
  • Germany's invasion of Poland in 1939: The invasion of Poland started the war in Europe, but the U.S. stayed officially neutral until 1941.
  • The Berlin Blockade in 1948: The Berlin Blockade happened after World War II, during the Cold War.
Practice questionReviewedUnited States History › World Wars, the Cold War, and Foreign Policy★★★★☆

Question 5. During World War II, the U.S. government forced about 120,000 people of Japanese ancestry, most of them U.S. citizens, to live in camps. Which statement best describes this event?

  1. ① Civil liberties were limited during wartime
  2. ② It was an example of isolationism
  3. ③ It was part of the Marshall Plan
  4. ④ Voting rights were expanded during wartime
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Answer: ① Civil liberties were limited during wartime

Key point: Japanese American internment limited civil liberties

After Pearl Harbor, the government removed Japanese Americans from the West Coast and held them in camps, even though most were citizens and were not charged with any crime. In 1988, Congress formally apologized and paid compensation to survivors.

Wrong choices

  • It was an example of isolationism: Isolationism is a foreign policy of staying out of world affairs. Internment was a policy at home.
  • It was part of the Marshall Plan: The Marshall Plan was aid to rebuild Europe after the war.
  • Voting rights were expanded during wartime: The internment took away people's freedom. It did not expand voting rights.
Practice questionReviewedUnited States History › World Wars, the Cold War, and Foreign Policy★★★★☆

Question 6. In 1947, President Harry Truman said: "I believe that it must be the policy of the United States to support free peoples who are resisting attempted subjugation by armed minorities or by outside pressures." Which Cold War policy does this statement express?

  1. ① Containment, stopping the spread of communism
  2. ② Manifest Destiny, expanding across the continent
  3. ③ Appeasement, giving in to an aggressor's demands
  4. ④ Isolationism, staying out of world affairs
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Answer: ① Containment, stopping the spread of communism

Key point: Truman Doctrine: containment of communism

This statement is the heart of the Truman Doctrine. The United States would help countries such as Greece and Turkey resist communist pressure. This policy of keeping communism from spreading is called containment, and it guided U.S. foreign policy during the Cold War.

Wrong choices

  • Manifest Destiny, expanding across the continent: Manifest Destiny was a belief about expanding across North America in the 1800s.
  • Appeasement, giving in to an aggressor's demands: Truman called for resisting pressure, not giving in to it.
  • Isolationism, staying out of world affairs: Truman promised to support other countries, which is the opposite of staying out of world affairs.
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Question 7. After World War I, President Woodrow Wilson proposed a League of Nations. The U.S. Senate refused to approve the Treaty of Versailles, and the United States never joined the League. Which idea does the Senate's decision best reflect?

  1. ① Imperialism
  2. ② Totalitarianism
  3. ③ Containment
  4. ④ Isolationism
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Answer: ④ Isolationism

Key point: Rejecting the League of Nations reflected isolationism

Many Americans after World War I wanted to avoid being pulled into future European conflicts. The Senate's refusal to join the League of Nations reflected isolationism, a policy of staying out of world affairs. This view stayed strong until the attack on Pearl Harbor.

Wrong choices

  • Imperialism: Imperialism means taking control of other lands. Refusing to join the League was a step away from world affairs.
  • Totalitarianism: Totalitarianism is a type of government, not a foreign policy choice by the Senate.
  • Containment: Containment was a Cold War policy that came after World War II.

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