The Treaty of Guadalupe-Hidalgo, which was signed on February 2, 1848, ended the Mexican-American War and established the United States-Mexico border. As part of the treaty, Mexico ceded nearly half of its territory to the United States, including the present-day states of California, Nevada, Utah, most of Arizona, and parts of New Mexico, Colorado, Wyoming, and Kansas.
Under the terms of the treaty, Mexican citizens who lived in the ceded territory were granted the right to become American citizens. However, in practice, many Mexican Americans were treated unfairly and faced discrimination. For example, they were often denied equal access to education, employment, and political representation. Some were even forcibly removed from their land.
In general, the treatment of Mexican Americans did not align with the provisions of the Treaty of Guadalupe-Hidalgo, which granted them the right to become American citizens and promised that their property and civil rights would be protected