Treaty of Guadalupe Hidalgo (1848)
About This Text
The Treaty of Guadalupe Hidalgo officially ended the Mexican–American War (1846–1848). By signing this treaty, the United States acquired about 55 percent of Mexico’s territory and extended the boundaries of the United States west to the Pacific Ocean. This agreement, along with the 1853 Gadsden Purchase, created the southern border of the present-day United States.