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Ch 21: Major U.S. & World Conflicts

About This Chapter

Use the lessons in this chapter of our study guide to refresh your understanding of some of history's major conflicts, including the Seven Years War, the U.S. Civil War, and World Wars I and II. Find out causes and lasting impacts of these struggles.

Major U.S. & World Conflicts - Chapter Summary

Let our instructors help with your review of important conflicts over the past 250 or so years, including the Seven Years' War and its consequences for America. Find out more about the Spanish Civil War and look at conflict in Asia in the 1920s and '30s. Explore the causes of World War I, get information on genocide in Hitler's Germany, and discover how World War II ended for Japan.

Other lessons examine the Cold War era, the conflicts in Korea and Vietnam and the U.S. wars with Iraq. After watching these videos, you should have clear ideas about subjects such as:

  • The impact of the Seven Years' War
  • The causes and effects of the Crimean War
  • Factors that led to World War I
  • How Hitler rose to power in Germany
  • The Holocaust
  • The impact of the atomic bomb on warfare
  • Events of the American Civil War, the Spanish Civil War, and Japan and China's interwar period
  • Causes and important figures of the Gulf War and the Iraq War

This study guide offers a variety of tools to help you refresh your knowledge of these conflicts. Start by watching short video lessons on your computer, smartphone or tablet. Every lesson is followed by a multiple-choice quiz that lets you assess your learning. A Timeline with clickable links back to lessons accompanies each video, making it easy to return to a specific passage for review. A test transcript has key terms and concepts in bold type, and you can print out a sheet of the quiz questions for offline study.

14 Lessons in Chapter 21: Major U.S. & World Conflicts
Test your knowledge with a 30-question chapter practice test
The Seven Years' War: History & Impact

1. The Seven Years' War: History & Impact

In this lesson we explore the Seven Years' War, a global conflict that was fought in central Europe and in North America, which had important financial and territorial ramifications for its participants.

Interwar Conflict in Asia Between World Wars: History & Response

2. Interwar Conflict in Asia Between World Wars: History & Response

In this lesson, we discuss Japan and China and the disparate fortunes of the two nations during the interwar period, including Japanese military aggression toward China.

The Spanish Civil War & the Influence of Foreign Powers: Definition, Summary & Timeline

3. The Spanish Civil War & the Influence of Foreign Powers: Definition, Summary & Timeline

In this lesson, we explore the Spanish Civil War that broke out between nationalists and socialists in Spain in the 1930s. In the aftermath, General Francisco Franco instituted a fascist dictatorship.

North America: the American Civil War and Dominion of Canada

4. North America: the American Civil War and Dominion of Canada

In this lesson, we explore the American Civil War's effects on European geopolitics and the remotely connected creation of the Dominion of Canada only a few years after the war's close.

The Crimean War: Summary, Causes & Effects

5. The Crimean War: Summary, Causes & Effects

In this lesson, we explore the Crimean War of 1854-1856 between Russia and the Ottoman Empire, France, and Great Britain. It is often considered one of the more bungled military campaigns in recent Western history.

Causes of World War I: Factors That Led to War

6. Causes of World War I: Factors That Led to War

Although World War I began in Europe, it is important to take a look at World War I in relation to U.S. history as well. The U.S. was greatly affected by the war. In this lesson, we'll take a quick and direct look at the causes that led up the war and the assassination that was the final catalyst.

Hitler's Third Reich: Rise to Power, History & Collapse

7. Hitler's Third Reich: Rise to Power, History & Collapse

In this lesson, we explore the rise of Hitler's Third Reich, its domination of German society in the 1930s, and the world war it began which eventually led to its downfall.

The Holocaust: Anti-Semitism and Genocide in Nazi Germany

8. The Holocaust: Anti-Semitism and Genocide in Nazi Germany

The Holocaust was the persecution and mass murder of as many as 11 million people by Adolf Hitler and the Nazis between 1933 and 1945. Learn about the people they targeted, the progression of events leading up to the Final Solution and the end of the genocide in this lesson.

Hiroshima and Nagasaki: How the Atomic Bomb Changed Warfare During WWII

9. Hiroshima and Nagasaki: How the Atomic Bomb Changed Warfare During WWII

As America and its WWII allies considered invading Japan, the Manhattan Project successfully developed an atomic weapon. Its use on Hiroshima and Nagasaki, Japan, precipitated VJ Day, the end of the Pacific war, on August 14, 1945.

The Cold War: Definition, Causes & Early Events

10. The Cold War: Definition, Causes & Early Events

The period of distrust between the Soviet Union and United States was known as the Cold War. Learn about the origins of the era, essential events and the shaping of the national security state.

The Korean War: Causes, Effects and The United Nations

11. The Korean War: Causes, Effects and The United Nations

In this lesson, we will examine the Korean War. We will explore the events leading up to the war, some of its most important battles, and also highlight the key themes associated with it.

The Vietnam War: Causes, Conflicts & Effects

12. The Vietnam War: Causes, Conflicts & Effects

The Vietnam War was the longest and most polarizing conflict in the history of the United States. Learn about the causes of the war as well as its effects on the United States.

Causes, Events & Political Figures of the Gulf War

13. Causes, Events & Political Figures of the Gulf War

The Gulf War occurred in 1990 and 1991 when Iraq invaded Kuwait. UN, NATO, and United States forces responded by attacking and pushing Iraqi troops out of Kuwait. The war was a decisive victory for American and coalition forces.

Understanding the Iraq War

14. Understanding the Iraq War

The Iraq War lasted from 2003-2011. Thousands of American and Coalition forces died during the conflict, as well as many thousands of Iraqis. The American decision to go to war in Iraq remains controversial today.

Chapter Practice Exam
Test your knowledge of this chapter with a 30 question practice chapter exam.
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Practice Final Exam
Test your knowledge of the entire course with a 50 question practice final exam.
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