After the United States annexed Texas in 1845, a dispute over its southern border led to a war. What war was it?

In May 1846, President Polk told Congress that Mexico had "shed American blood upon the American soil." What did Congress do in response to his message?

Texas claimed its border was the Rio Grande, but Mexico said Texas ended at a river farther north. What was the disputed land between the two rivers called?

In December 1847, Illinois Congressman Abraham Lincoln introduced the "Spot Resolutions." What did they challenge?

Before the war began, President Polk sent an envoy to offer Mexico money for California and New Mexico. What did Mexico do?

What treaty ended the Mexican-American War in 1848?

The Treaty of Guadalupe Hidalgo was signed on February 2, 1848, at a village near what major city?

In the Treaty of Guadalupe Hidalgo, how much money did the United States agree to pay Mexico for the ceded territory?

Under the Treaty of Guadalupe Hidalgo, which river became the border between Texas and Mexico?

Besides paying Mexico $15 million, what did the United States also agree to do under the Treaty of Guadalupe Hidalgo?

After the Mexican-American War, the United States gained land including California and New Mexico. What was this acquisition called?

The highlighted state was part of a land gain from Mexico that extended the United States to the Pacific Coast after 1848. What was this land gain called?

California, Nevada, and Utah (darker on the map) and parts of Arizona, New Mexico, Colorado, and Wyoming (lighter) were mainly added through what 1848 acquisition?

In 1853, the United States paid Mexico $10 million for land in what is now southern Arizona and New Mexico, partly for a railroad route. What was this land called?

Also in 1846, the United States and Britain agreed to split a northwestern region at the 49th parallel. What region was divided?

Supporters believed the United States had a God-given right to spread across North America. What idea did the war with Mexico help fulfill?

The Compromise of 1850 settled a fight over lands gained from Mexico. Which new state did it admit to the Union as a free state?

In 1846, Congressman David Wilmot proposed the Wilmot Proviso for lands that might be gained from Mexico. What did it propose?

After the war with Mexico, why did new western territories increase tension between North and South?

Which list puts these U.S. land gains in order from earliest to latest?