Early in the Mexican-American War in late 1846, the United States had captured New Mexico and California, and the whole Southwest became U.S. territory upon the signing of the Treaty of Guadalupe Hidalgo, February 2,1848.
The United States had captured New Mexico and California. This was early in the Mexican-American War in late 1846. The whole Southwest became U.S. territory upon the signing of the Treaty of Guadalupe Hidalgo, February 2,1848. This was early in the Mexican-American War in late 1846.