The boundary between Mexico and the United…
1840 CE to 1851 CE
Mexico is now required to relinquish its territories of New Mexico and Upper California (the present-day states of California, Nevada, Utah, and parts of Arizona, New Mexico, Colorado, and Wyoming) and to accept Texas's incorporation into the United States.
As compensation, the United States agrees to pay fifteen million U.S. dollars for the territories and to assume more than three million U.S. dollars in claims from private citizens of these areas against the Mexican government.
Mexico loses more than one-half of its territory as a result of the war with the United States.
The territorial losses and the brief but traumatic occupation of Mexico City by United States troops engenders a deep-seated mistrust of the United States that still resonates in Mexican popular culture.
Anti-United States nationalist sentiment will be a major intellectual current in the Mexican Revolution and will continue to manifest itself in some aspects of Mexican society.
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