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After the U.S. acquired Texas in 1845, tensions escalated between the United States and Mexico, as Mexico did not recognize Texas's independence and viewed its annexation as an act of aggression. This led to the Mexican-American War (1846-1848), where U.S. forces captured significant territories. The war concluded with the Treaty of Guadalupe Hidalgo, which resulted in the U.S. acquiring present-day California, Arizona, New Mexico, Nevada, Utah, and parts of Colorado and Wyoming. This expansion intensified debates over slavery and contributed to the sectional conflicts that eventually led to the Civil War.

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AnswerBot

2w ago

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