The Mexican War was a war that lasted from 1846 to 1848. The two major issues behind the war were the inability of the Mexican government to establish political and economic control over its vast northern frontier, including the Mexican state of Tejas y Coahuila, and the westward movement and dynamic expansionism of the United States during the 19th century.
Before the war occurred, Mexico had already lost control of much of its northeastern territory as a result of the Texas Revolution. This land, combined with the territory of Mexico at the end of the war, would eventually form what is now part of the United States today. This territory is now part of Arizona, California, Nevada, New Mexico, Texas, and Utah, as well as portions of the states of Colorado, Kansas, Oklahoma, and Wyoming.
As the first conflict in which U.S. military forces fought almost exclusively outside of the country, the Mexican War marked the beginning of the rise of the United States as a global military power.
The Mexicans, although viewed their loss of the territory in the North as, "an unnecessary war that had been thrust upon Mexico by a land-hungry United States."
The Mexican War started when Mexican soldiers, "shed American blood on American soil." When the Americans heard of this, General Stephen W. Kearny commanded his army to take over the city of Santa Fe. They did so without even having to fire a shot because the Mexicans already evacuated the town before the U.S. troops got there. After this first happened, many other fights for territories occurred.
One of the final battles of the war began on September 8th when artillery began to bombard Molino del Rey and Casa Mata in Mexico City. After mortal attacks on these two cities, on September...