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Ch 9: MEGA Social Science Multi-Content: Missouri & US History 1945-Present

About This Chapter

Our experts have put together the lessons in this chapter as preparation for you before you take the Missouri Educator Gateway Assessments (MEGA) Social Science Multi-Content test. The lessons are about Missouri and U.S. history from 1945 to the present.

MEGA Social Science Multi-Content: Missouri & US History 1945 - Present - Chapter Summary

This chapter's lessons are short videos that will act as refreshers for Missouri teachers and aspiring educators who plan to take the MEGA Social Science Multi-Content test. Your review of the chapter could increase your ability to answer test questions on topics covered by the lessons, including:

  • The 1948 election of Truman versus Dewey
  • American politics after World War II
  • The start of the Cold War, its causes and early events
  • A look at the U.S. involvement in the Korean War
  • An examination of the Red Scare and McCarthyism
  • A discussion of the causes, conflicts and effects of the Vietnam War
  • The foreign policies of President Richard Nixon and President Ronald Reagan
  • An understanding of the Gulf War
  • The events of September 11 and the War on Terror
  • A view of the War in Afghanistan and the Iraq War

The lessons are hosted by our subject matter experts, each lasting 5-10 minutes and all with a quiz at the end to verify your comprehension of the lesson content. If you need to look back over any portion of any of the lessons, you can refer to the transcript provided. You can also use our convenient timeline tool for going quickly to the exact spot you want to watch again. If necessary, submit a question directly to an expert.

12 Lessons in Chapter 9: MEGA Social Science Multi-Content: Missouri & US History 1945-Present
Test your knowledge with a 30-question chapter practice test
Truman vs Dewey: The Election of 1948

1. Truman vs Dewey: The Election of 1948

The 1948 election between incumbent Democratic President Harry S. Truman and Republican Thomas E. Dewey is considered the greatest election upset in American history by most historians.

Post-War American Politics: Foreign & Domestic Policy

2. Post-War American Politics: Foreign & Domestic Policy

In this lesson, we will learn about American politics in the post-war era. We will highlight the broad contours of foreign and domestic policies, and learn how Americans planned to deal with the challenges of an increasingly complex world.

The Cold War: Definition, Causes & Early Events

3. 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.

United States Involvement in the Korean War: Causes and Effects

4. United States Involvement in the Korean War: Causes and Effects

The Korean War was a short but bloody war with more than five million casualties. Find out what caused this deadly and destructive war, how the United States came to be involved and how the war affected Korea and its allies.

McCarthyism and the Red Scare: Definition, Causes & Effects

5. McCarthyism and the Red Scare: Definition, Causes & Effects

The fear of communism, known as the Red Scare, led to a national witch hunt for suspected communist supporters, which was known as McCarthyism. Learn about the rise of McCarthyism and the Red Scare, the impact of McCarthyism on American society and the legacy of the short-lived fear campaign.

The Vietnam War: Causes, Conflicts & Effects

6. 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.

Foreign Policies of President Nixon: Vietnamization & Detente

7. Foreign Policies of President Nixon: Vietnamization & Detente

President Richard Nixon entered office in 1969 with the hope of easing international relations and honorably ending the war in Vietnam. Learn about his various attempts at securing international peace.

President Ronald Reagan's Foreign Policy

8. President Ronald Reagan's Foreign Policy

President Ronald Reagan's foreign policy was an aggressive attempt to renew the Cold War with the Soviet Union. Learn about the policies, actions and results of Reagan's foreign policy in this lesson.

Causes, Events & Political Figures of the Gulf War

9. 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.

September 11th & the War on Terror

10. September 11th & the War on Terror

September 11, 2001 was a day of terrorist attacks by radical Islamists against the United States. In New York, Virginia, and Pennsylvania, nearly 3,000 people were killed. As a result, the United States launched a War on Terror that has lasted over a decade since.

The War in Afghanistan: Causes, Timeline & Controversy

11. The War in Afghanistan: Causes, Timeline & Controversy

The War in Afghanistan began in 2001 after the September 11 attacks. United States and NATO coalition forces attacked Taliban and Al Qaeda forces. As of 2014, United States personnel are withdrawing from the country, ending over a decade of fighting.

Understanding the Iraq War

12. 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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Other Chapters

Other chapters within the MEGA Social Science Multi-Content: Practice & Study Guide course

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