What happened when New Mexico rose up against the United States

Former Mexican Territories That Became U.S. States These present-day states were fully or largely part of Mexico: California Nevada Utah Arizona New Mexico Texas Parts of Colorado Parts of Wyoming Parts of Kansas Parts of Oklahoma How the U.S. Got Them Most of this land changed hands after the Mexican–American War. The war ended with the Treaty of Guadalupe Hidalgo, where Mexico ceded about 55% of its territory to the United States. Later, the U.S. bought a smaller strip of land in southern Ariz