Mexican-American War - 3 Minute History

After gaining independence from Spain in 1821, Mexico faced internal chaos and external threats. The Republic of Texas declared independence in the 1830s, leading to unresolved border disputes. The US, driven by manifest destiny, annexed Texas in 1845, sparking the Mexican-American War. Despite internal opposition, the US quickly advanced, capturing key territories. The Treaty of Guadalupe Hidalgo in 1848 ceded vast lands to the US, setting the stage for the Wild West and the Californian Gold Rush. However, the new territories fueled tensions over slavery, contributing to the US Civil War.

What was a significant challenge Mexico faced after gaining independence from Spain?

• Stable government

• Economic prosperity

• Peaceful borders

• Continuous rebellions

What was the American belief that justified their territorial expansion?

• Manifest Destiny

• Expansionism

• Divine Right

• Territorial Integrity

Why did the United States go to war with Mexico?

• To defend against a Mexican invasion

• Due to a border dispute and attack on American troops

• To expand north of Oregon

• To support Mexican independence

Which future US president led troops south to conquer Monterrey during the Mexican-American War?

• James K. Polk

• Ulysses S. Grant

• Zachary Taylor

• Abraham Lincoln

What was a major consequence of the new territories acquired after the Mexican-American War?

• Peaceful relations with Mexico

• Immediate statehood for all territories

• Resolution of slavery issues

• Increased tensions over slavery