| • Science | • People | • Locations | • Timeline |
| Military history of Mexico Military history of the United States | |||||||||||||
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| Conflict | Mexican-American War | ||||||||||||
| Date | 1846–1848 | ||||||||||||
| Place | Southern US and northern Mexico | ||||||||||||
| Result | Treaty of Guadalupe Hidalgo, Mexican Cession | ||||||||||||
| Battles of the Mexican-American War | |||||||||||||
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The Mexican-American War was a war fought between the United States and Mexico between 1846 and 1848. It is also called the US-Mexico War. In the US it is also known as the Mexican War; in Mexico it is also known as the North American Invasion of Mexico, the United States War Against Mexico, and the War of Northern Aggression (this last name is more commonly used in the Southern United States to refer to the American Civil War).
The war grew out of the Mexican conflict with Texas. After having won its independence from Mexico in 1836, the Republic of Texas was annexed by the United States in 1845Events January 29 The Raven by Edgar Allan Poe is published for the first time New York Evening Mirror . March 1 President John Tyler signs a bill authorizing the United States to annex the Republic of Texas. March 3 Florida is admitted as the 27th U.; however, the Mexican government disputed the southern border of Texas. That same year tensions between the two countries over territory were raised when the United States government offered to pay off the Mexican debt to American settlers if Mexico allowed the US to purchase the Mexican territories of CaliforniaCalifornia is a state located in the western United States, bordering the Pacific Ocean. The most populous and third largest state in the U. California is both physically and demographically diverse. The state's official nickname is "The Golden State", wh and New MexicoNew Mexico is a state in the southwestern United States and its U. postal abbreviation is NM . The state's two official languages are English and Spanish. Nuevo Mexico was the Spanish name for the territory north and west of the Rio Grande. USS New Mexico from Mexico, which some Mexicans found offensive.
President James K. PolkJames Knox Polk ( November 2, 1795 June 15, 1849) was an American politician and the eleventh U. President, serving from March 4, 1845 to March 4, 1849. Polk was born in North Carolina, but primarily lived in and represented the state of Tennessee. A Demo ordered General Zachary TaylorThis article is about the military leader and politician. For the Power Ranger character, see Zachary Taylor (Power Rangers character). Zachary Taylor Order 12th President Term of Office March 5, 1849—July 9, 1850 Followed James Knox Polk Succeeded by Mil to seize disputed Texan land settled by Mexicans. Fighting began in April 24April 24 is the 114th day of the year in the Gregorian Calendar (115th in leap years). There are 251 days remaining. Events 1184 BC Greeks enter Troy using the Trojan Horse (traditional). 1066 Halley's Comet spotted. 1704 The first regular newspaper in th, 1846 when Mexican cavalry entered an area claimed by both the US and Mexico, between the rivers Rio Grande and Nueces, and surrounded a US scouting party under General Zachary Taylor; several were killed. After the border clash and battles at Palo Alto and Resaca de la Palma, the US Congress declared war on May 13, 1846. Northern Whigs generally opposed the declaration of war while Southerners supported it. Mexico declared war on May 23.
After the United States declared war on Mexico, US forces invaded Mexico on several fronts. In the Pacific, the US Navy sent John D. Sloat to occupy California and claim it for the US because of concerns that Britain might also attempt to occupy the area. He linked up with US colonists in Northern California who had previously declared an independent California Republic and occupied some key cities. Meanwhile, US army troops under Stephen W. Kearny occupied Santa Fe, New Mexico, and Kearny led a small force to California where, after some initial reverses, he united with naval reinforcements under Robert F. Stockton to occupy San Diego and Los Angeles.
The main force lead by Taylor continued across the Rio Grande into Mexico, winning the Battle of Monterrey in September of 1846. Mexican President Antonio López de Santa Anna personally marched north to fight Taylor but was defeated at the battle of Buena Vista on February 22, 1847. Meanwhile, rather than reinforce Taylor's army for a continued advance, President Polk sent a second army under US general Winfield Scott in March, which was transported to the Mexican port of Veracruz by sea to begin an invasion of the Mexican heartland. Scott won the Battle of Vera Cruz and marched toward Mexico City, winning the battles of Cerro Gordo and Chapultepec and occupying the Mexican capital.
The Treaty of Cahuenga, signed on January 13, 1847, ended the fighting in California. The Treaty of Guadalupe Hidalgo, signed on February 2, 1848, ended the War and gave the US undisputed control of Texas as well as California and most of Arizona and New Mexico.
An interesting side note of the war was the Saint Patrick's Battalion (San Patricios), a group, approximately 500-strong, of (largely Irish-born) Americans who deserted the US Army in favor of the Mexican side. Many of them fought against what they alleged was brutal, racist discrimination received from the US. Many identified with Mexico as Catholics. They were hanged by the US; making sure that the last thing these Irish men saw was the lowering of the Mexican flag and the raising of the US flag as the war was won. Some historians claim that these men were prisoners of war. Others argue that they were traitors and deserters. There are many monuments to these soldiers in present-day Mexico.
According to data from the United States Department of Veterans Affairs, the last surviving US veteran of the conflict, Owen Thomas Edgar , died on September 3, 1929 at the age of 98.
The war is often considered an example of the US government's then-ongoing expansionist policies in North America, as defined by the doctrine of Manifest Destiny.