What treaty ended the Mexican-American War and what was one major consequence?

What treaty ended the Mexican-American War and what was one major consequence?

• A. Treaty of Guadalupe Hidalgo; expanded U.S. territory and intensified slavery debates.
• B. Treaty of Paris; reduced territory.
• C. Adams-Onís Treaty; created new borders with Canada.
• D. Gadsden Purchase; opened trade with Mexico.

Answer: (A)

Ending the Mexican-American War came with the Treaty of Guadalupe Hidalgo in 1848. This agreement not only stopped the fighting but also reshaped the map by adding a vast swath of territory to the United States—california and much of the southwest (Nevada, Utah, Arizona, and parts of Colorado, New Mexico, and Wyoming). A key political consequence was that this expansion intensified the national debate over whether slavery would be allowed in the new territories, fueling sectional tensions between free and slave states that would culminate in the Civil War. The treaty also set the Rio Grande as the border and provided for the U.S. payment of $15 million to Mexico and the assumption of Mexican debts, but the lasting impact tied to the war’s outcome was the territorial growth combined with the intensification of slavery debates. Other options refer to different agreements or purchases: the Treaty of Paris ended a different conflict and does not end this war; the Adams-Onís Treaty settled borders with Spanish territories earlier; and the Gadsden Purchase occurred later and did not end the Mexican War.

Ending the Mexican-American War came with the Treaty of Guadalupe Hidalgo in 1848. This agreement not only stopped the fighting but also reshaped the map by adding a vast swath of territory to the United States—california and much of the southwest (Nevada, Utah, Arizona, and parts of Colorado, New Mexico, and Wyoming). A key political consequence was that this expansion intensified the national debate over whether slavery would be allowed in the new territories, fueling sectional tensions between free and slave states that would culminate in the Civil War. The treaty also set the Rio Grande as the border and provided for the U.S. payment of $15 million to Mexico and the assumption of Mexican debts, but the lasting impact tied to the war’s outcome was the territorial growth combined with the intensification of slavery debates.

Other options refer to different agreements or purchases: the Treaty of Paris ended a different conflict and does not end this war; the Adams-Onís Treaty settled borders with Spanish territories earlier; and the Gadsden Purchase occurred later and did not end the Mexican War.