Mexican independence marked a pivotal shift in North American history. The movement, sparked by Miguel Hidalgo's 1810 "Grito de Dolores," saw key figures like José María Morelos and Agustín de Iturbide lead the fight against Spanish rule. The struggle reshaped borders and power dynamics in the region. Mexico gained independence in 1821, but later lost vast territories to the U.S. through the Texas Revolution and Mexican-American War, profoundly impacting Native American communities and cultural identities in the Southwest.