What was the main cause of tensions leading to the Mexican-American War? 🔊
The main cause of tensions leading to the Mexican-American War (1846-1848) was the annexation of Texas by the United States in 1845. Mexico viewed this as an illegitimate act since it had not recognized Texas's independence from Mexico. Additionally, disputes over the southern border of Texas, particularly with the Rio Grande and Nueces River, further escalated conflicts. Expansionist ambitions in the U.S., encapsulated in the concept of Manifest Destiny, fueled a desire for acquiring California and other territories, leading to open conflict and the eventual defeat of Mexico.
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