Last Updated 26 Jan 2021

The Mexican-American War, Were We Justified

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The Mexican-American War was a war between the United States and Mexico which lasted from April 1846 to February 1848. It stemmed from the United States' annexation of Texas in 1845 and from a dispute over whether Texas ended at the Nueces River (Mexican claim) or the Rio Grande (U. S. claim). The war was the most devastating event in Mexican history, where Mexico lost the modern day areas of California, Arizona, New Mexico, Nevada, Colorado and Montana. The Mexican-American spawned out of land lust. The idea of Manifest Destiny and the promising lands of California, which were coveted by many European nations, led to a war of greed.

Even Abraham Lincoln, then a young Congressman, and Ulysses S. Grant, the future Civil War victorious commander and U. S. President, believed that the invasion of Mexico was not justified. Mexico had rejected a $15 million cash-for-land deal offered by the US. The area included what now covers the states of California, Arizona, New Mexico and parts of Colorado and Utah. This territory was Mexican, but only nominally; control over the area was slight, and open to intrusion. Irritated at the rebuff, the US struck back in1845 by annexing Texas, a territory long disputed and fought over by both countries.

Mexico responded by severing diplomatic relations. U. S. President Polk further provoked Mexico by moving troops south to the Rio Grande, a river that historically was considered well within Mexico. U. S. and Mexican troops skirmished across the river, leading Polk to declare to Congress on May 11, 1846, that “…the cup of forbearance has been exhausted,” and that “American blood has been spilled on American soil. ” (Source: Eisenhower’s So Far From God, pages 49-55) The U. S. -Mexican War is the pivotal chapter in the history of North America.

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It is the war that sealed the fates of it's two participants. For the United States, the War garnered huge amounts of territory and wealth, bootstrapping the fledgling democracy onto the world stage. For Mexico, the War sent the emerging nation into a tailspin that it is still reckoning with today, one hundred fifty years later. In the United States the US-Mexican War is virtually forgotten, and for good reason, as it is the clearest example of American greed and undiplomatic actions. The Mexican-American War was waged upon Mexico out of pure greed and disregard for international liberty.

In conclusion, the United States was unjust in its declaration of war on Mexico in 1846. The U. S. was clouded with dreams of Manifest Destiny. It had a president that was obsessed with fulfilling campaign promises and greed for new land. Polk was looking for revenge for the denial of the proposal for buying California as was evident in his original reasons for declaring war on Mexico. Also the U. S. provoked this border dispute into the two-year war that it became by purposely inciting the Mexicans into a fight. All these reasons are the evidence that the US was not justified in declaring war on Mexico.

The Mexican-American War, Were We Justified essay

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Related Questions

on The Mexican-American War, Were We Justified

What was the main cause of the Mexican American War?

The primary driver of the war was the westbound extension of the US. All through the nineteenth century Americans trusted it was their entitlement to extend westbound. At the time they accepted they could vanquish the individuals previously living on the land and take it for the US.

What prominent figure opposed the Mexican War?

Mexicans who restricted direct clash with the US, including President José Joaquín de Herrera, were seen as double crossers.

What part of the US used to be Mexico?

Zone Mexico surrendered to the US in 1848, less Texan cases. The Mexican Cession comprised of present-day U.S. conditions of California, Nevada, Utah, the vast majority of Arizona, the western portion of New Mexico, the western quarter of Colorado, and the southwest corner of Wyoming.

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The Mexican-American War, Were We Justified. (2018, Oct 11). Retrieved from

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