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  1. Mexican–American War - Wikipedia

    The Mexican War of 1846–1848, largely forgotten today, was the second costliest war in American history in terms of the percentage of soldiers who died. Of the 78, 718 American …

  2. Mexican-American War | Significance, Battles, Results, Timeline ...

    Dec 29, 2025 · 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 …

  3. Mexican-American War - World History Encyclopedia

    Jul 4, 2025 · The Mexican-American War (1846-1848) was a conflict between the United States and Mexico, sparked by the US annexation of Texas in 1845. Hoping to seize even...

  4. Mexican-American War: Causes & Treaty of Guadalupe Hidalgo | HISTORY

    Nov 9, 2009 · The Mexican-American War of 1846 to 1848 marked the first U.S. armed conflict chiefly fought on foreign soil.

  5. The Mexican American War: A Detailed Analysis

    2 days ago · The Mexican-American War occurred from 1846 to 1848 and represents a pivotal event in the histories of Mexico and the United States. The conflict emerged from competing …

  6. Mexican War: A Resource Guide - Library of Congress

    Jun 16, 2022 · The Mexican War was fought between the United States and Mexico (1846-48), a conflict that began with a dispute over the annexation of Texas by the U.S. in 1845.

  7. The Mexican-American War: 175 Years Later

    May 13, 2025 · When Mexico surrendered in 1848, the United States acquired as a prize of war the vast Mexican Cession, stretching from current-day New Mexico to California. The great …

  8. The Mexican-American War [ushistory.org]

    The Mexican-American War was formally concluded by the Treaty of Guadalupe-Hidalgo. The United States received the disputed Texan territory, as well as New Mexico territory and …

  9. The Mexican-American War - ourhistory.org.uk

    Mar 15, 2025 · The Mexican-American War unfolded across three main theatres: northeastern Mexico, California, and central Mexico. The United States held significant advantages in …

  10. The Mexican-American War - U.S. National Park Service

    The Mexican-American War is one of the least known pivotal moments in US History. It paved the way for so many other important events, from the expansion and dispossession of indigenous …