The Mexican-American War led to westward expansion in pursuit of Manifest Destiny, triggering tensions and hostilities along the way.
The Mexican-American War led to further expansion west to achieve Manifest Destiny. This expansion added territories such as Texas and California to the United States, ultimately fueling the movement towards fulfilling the belief in Manifest Destiny. However, it also exacerbated tensions and hostilities with Mexico, Native Americans, and within the country itself regarding slavery.
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