Mexican American War Dbq Essay

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The Mexican-American war happened at the Rio Grande river over the claim of the border in 1846 between the United States and Mexico. The United States was not justified in going to war with Mexico because America sent troops into disputed territory to intentionally start a war. The main goal of the United States invasion was to gain control of Texas and expand on slavery. The United States took a position between the Nueces and Del Norte rivers because of the threatened invasion of Texas by Mexican forces. This is because Texas was determined to annex itself to the United States (Doc B). They were determined because land is a big priority especially when the United States thinks that “Mexico never can exert any real governmental authority over such a country” so they feel entitled to take the land (Doc A). The people wanted to take over Texas because they wanted more land for slavery and the newspaper over-hyped the idea of taking it so there was more land for slavery (Doc D). …show more content…

They are in disagreement saying that the border is at two different rivers. Polk says “The congress of Texas, by its act of December 19, 1836, has declared the Rio Del Norte to be the boundary of that republic” (Doc B). On the other hand, historian says that from Mexico's viewpoint, the annexation of Texas to the United States was inadmissible for both legal and security reason. Thus, when the Mexican government learned of the treaty signed between Texas and the United States in April 1844 . . . would consider such an act "a declaration of