Treaty of Guadalupe Hidalgo

The Treaty of Guadalupe Hidalgo ended the Mexican-American War on February 2, 1848. Nicholas Trist negotiated for the United States, while Luis Gonzaga Cuevas, Bernardo Couto, and Miguel Atristain represented Mexico. The agreement transferred 55% of Mexico's territory to the United States, including present-day California, Nevada, Utah, most of Arizona and New Mexico, and parts of Colorado and Wyoming. The U.S. paid Mexico $15 million and assumed $3.25 million in American citizen claims against Mexico. The U.S. Senate ratified the treaty March 10, 1848, and Mexico ratified it May 19, 1848.