✦ History

Mexican-American War

April 25, 1846 – February 2, 1848 · Mexico City

Result American victory

The Mexican-American War (25 April 1846 to 2 February 1848) followed the 1845 U.S. annexation of Texas, which Mexico still claimed. U.S. forces invaded Mexico and occupied its capital. The war ended with the Treaty of Guadalupe Hidalgo, under which Mexico ceded roughly half its territory, including California and the Southwest, to the United States.

On the map Overview Contemporaries

United States

Mexico

Other

United States
Mexico
Winfield Scott Commanding General, Led the campaign that took Mexico City Zachary Taylor military commander, Won at Palo Alto, Monterrey and Buena Vista James K. Polk belligerent leader William L. Marcy belligerent leader Sterling Price belligerent leader William J. Hardee belligerent leader George M. Dallas belligerent leader John Y. Mason belligerent leader
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John E. Wool military commander Robert F. Stockton military commander
Antonio López de Santa Anna President of Mexico, Commanded Mexican forces at Buena Vista and in the defense of Mexico City José Joaquín de Herrera belligerent leader Nicolás Bravo belligerent leader Pedro María de Anaya belligerent leader Mariano Arista belligerent leader Mariano Paredes belligerent leader Manuel de la Peña y Peña belligerent leader Manuel María Lombardini belligerent leader
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José Mariano Salas belligerent leader Juan Álvarez belligerent leader Pedro de Ampudia military commander

Strength and losses

Strength
78,718
Casualties
18,130
Killed
1,733
Wounded
4,152
Missing
695

United States Strength 78,718 · Killed 1,733 · Deaths 13,283 · Wounded 4,152

Mexico Killed c. 6,000

Killed
c. 19,283
Deaths
11,733

Units

Army of Occupation 1st Mississippi Rifles Army of the West Doniphan's expedition Scott's army in Mexico United States Army Mormon Battalion United States Army Corps of Engineers 1st Air Defense Artillery Regiment 1st Cavalry Regiment (United States) 2nd Air Defense Artillery Regiment 2nd Cavalry Regiment (United States) 2nd Infantry Regiment (United States) 3rd Cavalry Regiment (United States) 4th Infantry Regiment (United States) 5th Infantry Regiment (United States) 7th Infantry Regiment (United States) California Battalion 1st U.S. Artillery, Battery E Home Squadron Pacific Squadron
Mexican Army Mexican Army of the North (1846) Santa Anna's army (1846–1847) Saint Patrick's Battalion
1st Infantry Regiment (United States) 3rd Air Defense Artillery Regiment 6th Infantry Regiment (United States) 9th Infantry Regiment (United States)

Battles and events 23

Key events

1846 10 events
1847 13 events

Before and after

Ended by
Treaty of Guadalupe Hidalgo February 2, 1848

Related events 1 degree away • 2 degrees away

1846
1848
1850
1852
1854
1856
1858
1860
1862
1864
 
Texas annexation
 
Mexican-American War
 
Treaty of Guadalupe Hidalgo
 
American Civil War

Also involved 104

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