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May 7, 2024 · See all videos for this article. Mexican-American War, war between the United States and Mexico (April 1846–February 1848) stemming from the United States’ annexation of Texas in 1845 and from a dispute over whether Texas ended at the Nueces River (Mexican claim) or the Rio Grande (U.S. claim).
- The Editors of Encyclopaedia Britannica
The Mexican–American War, also known in the United States as the Mexican War, and in Mexico as the United States intervention in Mexico, was an invasion of Mexico by the United States Army from 1846 to 1848.
- April 25, 1846 – February 2, 1848, (1 year, 9 months, 1 week and 1 day)
Nov 9, 2009 · On April 25, 1846, Mexican cavalry attacked a group of U.S. soldiers in the disputed zone under the command of General Zachary Taylor, killing about a dozen. They then laid siege to Fort Texas...
May 14, 2020 · When the Mexican military finally attacked Taylor’s army, war was declared, and Polk forced westward expansion through conflict with Mexico. Even though the war was opposed by many Americans, Americans rushed to volunteer and fight.
Learning Objectives. By the end of this section, you will be able to: Identify the causes of the Mexican-American War. Describe the outcomes of the war in 1848, especially the Mexican Cession. Describe the effect of the California Gold Rush on westward expansion.
American military forces took up several major campaigns in the course of the Mexican War. Polk began his prosecution of the war in June of 1846 by ordering American forces farther into Mexican territory. He directed Taylor and his men to push southward from the Rio Grande into central Mexico.
