The Treaty of Guadalupe Hidalgo was signed on February 2, 1848, marking the end of the Mexican-American War. This agreement resulted in Mexico ceding a large portion of its northern territory to the United States, including present-day states like California, Arizona, New Mexico, Nevada, and parts of Utah, Colorado, and Wyoming. The U.S. paid Mexico $15 million as part of the deal, which aimed to establish peace and define the new borders. The treaty significantly changed the landscape of North America and had lasting effects on both countries. It allowed the U.S. to expand its territory, fulfilling the idea of Manifest Destiny, while also leading to complex issues regarding the rights of the newly acquired