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Jul 29, 2024 · Mexican-American War, war between the U.S. and Mexico from 1846 to 1848. It was caused by a territorial dispute stemming from the United States’ annexation of Texas in 1845 and from contention over whether Texas ended at the Nueces River or the Rio Grande.
The Mexican–American War, [ a] also known in the United States as the Mexican War, and in Mexico as the United States intervention in Mexico, [ b] was an invasion of Mexico by the United States Army from 1846 to 1848.
Nov 9, 2009 · The Mexican‑American War was a 1846‑1848 conflict over vast territories in the American West, which the Treaty of Guadalupe Hidalgo gave to the United States.
May 14, 2020 · Two long years had passed after the initial shots were fired, sparking the Mexican American War in 1846. After United States forces under General Winfield Scott captured and occupied Mexico City in 1848, Mexican President Antonio López de Santa Anna surrendered.
When the United States annexed Texas in 1845, Mexico severed relations with its northern neighbor. U.S. President James K. Polk sent diplomat John Slidell on a secret mission to Mexico to negotiate the disputed Texas border and to purchase the New Mexico and California territories.
A Mexican force crossed the river at Palo Alto, and a battle took place on May 8, followed the next day by the Battle of Resaca de la Palma. Polk claimed to Congress that Mexico had “invaded our territory and shed American blood on American soil.” The United States declared war on Mexico on May 13.
The Mexican-American war (1846-1848) changed the slavery debate. It almost doubled the size of the United States and began a debate, between Northerners and Southerners, over what to do with the newly acquired land.
