Thursday, May 18, 2023

What students usually get wrong about the Mexican-American War

What students usually get wrong about the Mexican-American War


After teaching the Mexican-American War for many years, I've noticed that there are a few things that students tend to get wrong about this important event in our nation's history. In this blog post, I'll share some of the most common misconceptions and correct them so that you can help your students understand this crucial period in our country's past.





Misconception #1: The Mexican-American War began as a result of Mexican aggression

In reality, America sought to expand its boundaries into Mexico for the protection of slavery

The Mexican-American War is often misunderstood. While this 1846-1848 conflict between the United States and Mexico may sound straightforward, understanding its historical implications requires further research. Many Americans falsely believe that it began as a result of Mexican aggression, neglecting to realize that America sought to expand its boundaries and a major part of the war focused on the protection of slavery. This misunderstanding highlights the importance of learning history effectively in order to truly understand any event or conflict. Even though it’s now been over 170 years since this historic moment, gaining an appreciation for how it impacted diverse populations is still incredibly important.




Misconception #2: The primary cause of the war was the U.S. annexation of Texas

In reality, President James K. Polk sent American troops into what Mexico believed to be its territory, the area between the Rio Grande River and the Nueces River

The Mexican-American War mainly began over the issue of the U.S. annexation of Texas in 1845, which had formerly been a part of Mexico. This event enraged many Mexicans and led to disagreements about land control between the two nations as well as disputes about unresolved issues from the Texas Revolution that occurred nearly a decade prior. 

These disagreements quickly snowballed into war when President James K. Polk sent American troops into what Mexico believed to be its territory, initiating a conflict filled with territorial goals, heated battles and months of struggle and bloodshed on both sides before finally ending with the signing of the Treaty of Guadalupe Hidalgo in February 1848. Although many people often overestimate or discount the factors contributing to this war, it is important to remember that the primary cause was ultimately rooted in the United States' controversial decision to annex Texas.




Misconception #3: The Treaty of Guadalupe Hidalgo was a victory for the United States

In reality, America gained much more territory than they had previously. However the indigenous people and Mexicans living there were victim to mistreatment in this process.

While the United States saw the Treaty of Guadalupe Hidalgo as a victory in 1848, it certainly wasn't a straightforward win for America. The treaty ended Mexico-American War and resulted in Mexico giving up a large swath of land, including California, Arizona, New Mexico and Texas which consisted of nearly half of its territory. Although America may have gained new land through this treaty to expand upon their concept of manifest destiny, their mistreatment towards the Indigenous people that were already living in the areas was detrimental. 

In addition, 4 million Mexicans now found themselves living within US borders- citizens denied representation and excluded from many rights granted to those born in the United State's own borders. The Treaty of Guadalupe Hidalgo gave Mexicans the right to remain in U.S. territory or to move to Mexico, with only 3,000 opting to move. The U.S. Senate revised Article IX regarding civil and political rights and eliminated Article X, which would have allowed Mexicans to complete the process of claiming land grants under U.S. administration. 


The Mexican-American War is an important but often misunderstood part of American history. Some common misconceptions about the war include that it was caused by Manifest Destiny or that it was simply a land grab by the United States. However, the war was actually much more complex than that, and there were a number of factors that led to it beyond just American expansionism. 


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