The United States went into War with Mexico wanting over 500,000 square miles of new territory. They came away with nearly half of Mexico's previous national territory, including California, New Mexico, Nevada, Utah and parts of several other current US states. "The U.S. won the war by capturing Mexico City in September 1847 and forcing the Mexicans to negotiate a truce favorable to U.S. interests." Roots Of The Mexican American War.  The Americans, invaded Mexico on three fronts. The north through Texas, from the east through the port of Veracruz and into the west, (now known as the California and New Mexico. The U.S. won every major battle of the war, mostly because of superior artillery and officers. The war ended  February 2nd 1848, with more Mexicans passing away during the bloody massacre then Americans. People say that this war was a very bloody and a lot of deaths occurred. The Americans went into the war with more resources, and more weapons. The Mexicans had no idea what they were in for, and because of that, they lost both the war, and their land.    

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