What was a consequence of the Annexation of Texas?

• A. Mexican-American War
• B. War of 1812
• C. Civil War
• D. Spanish-American War

Answer: (A)

When Texas joined the United States, it heightened tension with Mexico and set the stage for conflict. Mexico had never recognized Texas’s independence and still claimed the land, so adding Texas to the U.S. created a contentious border situation. The border line along the Rio Grande became a flashpoint, and clashes with Mexican forces led to the start of the Mexican-American War in 1846. The war concluded in 1848 with the Treaty of Guadalupe Hidalgo, in which Mexico ceded a huge portion of its northern territory to the United States, expanding U.S. land dramatically and fueling later debates over how new territories would be governed.