The Mexican-American War and Its Consequences
The Mexican-American War (1846-1848) was a direct result of American expansionist policies and the annexation of Texas. President Polk's actions, including sending troops into disputed territory, ultimately led to conflict with Mexico.
Vocabulary: Sectionalism refers to the division between Northern and Southern states over issues such as slavery and states' rights.
The Treaty of Guadalupe Hidalgo ended the war in 1848, resulting in significant territorial gains for the United States. This included the present-day states of California, New Mexico, and the confirmation of Texas as part of the U.S.
Highlight: The Mexican Cession added vast new territories to the United States, intensifying debates over the expansion of slavery.
The Wilmot Proviso, though never passed, proposed banning slavery in any territories acquired from Mexico. This proposal heightened sectional tensions and foreshadowed future conflicts over slavery's expansion.
Quote: "The United States will conquer Mexico, but it will be as the man swallows the arsenic, which brings him down in turn. Mexico will poison us." - Ralph Waldo Emerson, reflecting on the consequences of the Mexican-American War.
The Gadsden Purchase of 1853 acquired additional territory from Mexico for the construction of a transcontinental railroad, completing the current southern border of the continental United States.