jan 1, 1848 - 7. Treaty of Guadalupe Hidalgo

Description:

peace treaty at the end of war

The treaty added an additional 525,000 square miles to United States territory, including the land that makes up all or parts of present-day Arizona, California, Colorado, Nevada, New Mexico, Utah and Wyoming.

Unrest and conflict along the border between the United States and Mexico date from the Treaty of Guadalupe Hidalgo

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