Did you know that Mexico lost 320,000,000 acres of land to the United States of America.The Mexican American war was a battle were America wanted Mexico's land but Mexico didn't want to sell the land so they fought for the land and America won. Although the United States war against Mexico resulted in the gaining of America's most valuable land, the war itself was unjust because of Texas being undisputed territory, the annexation of Texas, and because Texans had slaves and it was against the law. The texans sparked the war because they did not want to follow the Mexico's law. The Texans signed a paper which states that they would follow Mexico’s laws. On document B a letter that was written by Rafael Antonio Manchola “They have been using