Introducing KNOVA — A free reading app with curriculum-aligned passages on History & Science for Grades 3-8Learn More →

America Fights in the Vietnam War — Reading Comprehension

No ratings yet

Premium Resource

Grades

Rate this resource

Send Feedback / Report an Issue

About This Reader

This engaging world history reading passage explores the Vietnam War and the Domino Theory, a key idea that shaped U.S. foreign policy during the Cold War. Students will learn how the fear of communism spreading in Southeast Asia led to American involvement in Vietnam, examine primary source evidence, and understand the human impact of war. The passage includes academic vocabulary, a glossary, and activities that promote historical thinking and reading comprehension. Graphic organizers, a timeline, and multiple-choice quizzes help students analyze cause-and-effect relationships and sequence of events. Provided in both English and Spanish, this resource aligns with California History-Social Science Standards (CA HSS 10.9, 7.4) and Common Core reading standards, supporting English language learners and all students in building world history knowledge. Read aloud audio is available for accessibility.

CONTENT PREVIEW

"The Vietnam War, [died] December 31, 1971 May it rest in peace." by Committee to Help Unsell the War / Library of Congress.

The Vietnam War was one of the most significant conflicts of the Cold War era. It took place in Southeast Asia between 1955 and 1975, mainly in the country of Vietnam. The war involved the communist government of North Vietnam, supported by the Soviet Union and China, fighting against South Vietnam, which was backed by the United States and its allies. The key reason for U.S. involvement was the belief in the Domino Theory.

The Domino Theory was a major idea in U.S. foreign policy during the 1950s and 1960s. Leaders like President Dwight D. Eisenhower argued that if one country in Southeast Asia fell to communism, neighboring countries would also fall like a row of dominoes. This belief was based on earlier events, such as the communist victory in China in 1949. The U.S. government feared that if Vietnam became communist, then Laos, Cambodia, Thailand, and other nations would soon follow. The Domino Theory led the U.S. to provide economic and military aid to South Vietnam, eventually sending hundreds of thousands of American troops in the 1960s.

The war was marked by intense fighting, political tension, and controversial strategies. American leaders used tactics like bombing campaigns and the use of chemical agents such as Agent Orange, hoping to stop the spread of communism. However, the war was unpopular in the United States. Many Americans questioned whether the conflict was necessary or just. Primary source documents, such as President Lyndon B. Johnson’s 1965 speech to Congress, show how leaders tried to justify U.S. actions by referring to the Domino Theory. Evidence from North Vietnamese leader Ho Chi Minh’s writings reveals that national independence was also a key goal for the Vietnamese people, not just communism.

Geography played a critical role in the Vietnam War. The dense jungles and hot, humid climate made fighting difficult for U.S. troops, who were not used to the environment. Local people were often caught between both sides, and daily life was disrupted by bombings and the destruction of villages. The war also impacted the region’s social hierarchy, as rural peasants and urban elites experienced the conflict in different ways. Over time, opposition to the war grew in the U.S., leading to widespread protests and eventually to the withdrawal of American forces in 1973. In 1975, North Vietnam captured Saigon, unifying the country under communist rule.

The Vietnam War had lasting effects on the United States, Vietnam, and the world. It caused millions of deaths and left deep scars on families and societies. The Domino Theory proved controversial because, after Vietnam fell to communism, other Southeast Asian countries did not necessarily follow. The war changed how Americans viewed foreign policy and military intervention, and its lessons continue to shape global politics today.

The Vietnam War and the Domino Theory connect to broader themes of the Cold War, such as the struggle between communism and capitalism, and the impact of global conflict on everyday people.

Interesting Fact: The U.S. military used helicopters to quickly move troops and supplies through Vietnam’s challenging landscape, leading to the nickname “the Helicopter War.”

When did the Vietnam War begin?

1955194919651975

What was the Domino Theory?

If one country fell, neighbors would fallCountries trade goods like dominoesVietnam would win quicklyCommunism is the only system

Who supported North Vietnam?

Soviet Union and ChinaUnited StatesFrance and BritainJapan

Why did the U.S. enter the war?

To stop communism spreadingTo colonize VietnamTo support ChinaFor oil resources

What made fighting difficult for U.S. troops?

Dense jungles and hot climateTall mountainsCold wintersDesert conditions

What was a major effect of the war?

Millions of deaths and deep scarsImmediate peace in AsiaEnd of communismNo effect on U.S. policy