The Aftermath of the Mexican-American War

The Treaty of Guadalupe Hidalgo (1848) Forced on Santa Anna and Mexico What does this mean? How can you force someone into doing something? WHY would you need to use force? Southern boundary of Texas set at the Rio Grande U.S. gained: Present-day states of California, Nevada, and Utah Most of Arizona and New Mexico Parts of Colorado and Wyoming U.S. agreed to pay $15 million to Mexico and pay debts of Mexico to U.S. citizens

Rio Grande boundary Nueces River boundary

Treaty of Guadalupe Hidalgo In 1853, the United States’ acquisition of the southern portion of New Mexico enabled the U.S. to have flat land for a connecting railroad from East to West. Once the United States gained control of these areas, populations grew with new settlers flooding west. ***MEXICO LOST HALF OF ITS TERRITORY IN ALL!***

Treaty of Guadalupe-Hidalgo, 1848 Nicholas Trist, American Negotiator

Legacies of Mexican-American War “Small war”—not many lives lost Gained a ton of land (increased size of US by 1/3) Prepared military and soldiers for Civil War Led to Mexican resentment Re-aroused issue of slavery which would lead to Civil War WILMOT PROVISO

Wilmot Proviso The Wilmot Proviso banned slavery from any territory being acquired by the Mex-Am War ( California, Utah and New Mexico). Northerners supported the proviso. The Northerners feared that adding slave territory would give slave states more opportunity in Congress. Southerners had opposed this proviso. Southerners feared that if the Wilmot Proviso became a law power would shift to the North.

A Just War? “Mr. Polk’s War” What was achieved? What was lost? Significant Effects?