The United States of America in the 1800’s was a quickly developing nation. Various individuals moved west for religious open entryway while others were solid devotees to the Manifest Destiny. Recollecting the genuine goal to have more land, pioneers expected to meander westward in light of the way that there was more undeveloped land. Since most by a wide margin of the west was a bit of Mexico, this was a troublesome errand. Fortunately, Mexicans in like way required pioneers in their western domains since that zone was not made. Mexico welcomed Americans to settle in their property. In any case, the two nations had different refinements. It wouldn’t have been some time before the United States and Mexico went to war. The United States was bolstered in going to war since Mexico had shed American blood on American soil, Texas was a free republic and had the advantage to oversee itself, and Texas was endeavoring to wind up perceptibly isolated of the United States. Mexico had requested that Americans settle in the area of Texas, which was a touch of Mexico at the time. After the Texans and Mexicans battled, Texas won its opportunity from Mexico in 1836. In 1846, America sent a troop of men lead by General Zachary Taylor to the Texan outskirts to ensure the Mexicans weren’t endeavoring to strike Texas (Doc B). This aggravated Mexicans since it influenced it to appear as though Texas was lined up with America. The verbal encounter that took after affected the ruin of sixteen Americans. Likewise, the Mexicans assumed that the segment of General Zachary Taylor was a trap, which incite the engagements of Palo Alto and Resaca de la Palma (Doc C). This shows Mexico had meandered out battling the United States. As time goes on, the Mexicans were obliged to surrender. As to which side let go in any case, this can’t be settled. In one letter to Congress, James Polk conveyed, “We have tried each exertion at exchange off. The measure of resistance had been depleted even before the present data from the boondocks of the Del Norte. Regardless, now, … Mexico has passed the limit of the United States, has ambushed our space and shed American blood upon the American soil” (Doc B). Before Texas transformed into a bit of the United States, it was a free republic. An autonomous republic has the advantage to address itself and set itself apart from different countries. Texas respected the Rio del Norte to be the Texan fringe (Doc B). This proposes Texas now has the decision to do whatever they wish. Charles Sumner, a state overseer from Massachusetts, communicated, “… in scanning for increment of enslavement, (our own particular subjects denied) the epic surenesses of American open entryway” (Doc D). In the event that Texas is free, it has the advantage to ensure slaves. In like way, states in the United States effectively had slaves, so the point can’t be battled any further. Sumner comparably said Americans got slaves Mexico in assurance of Mexican law (Doc D). Regardless, Mexico welcomed Americans into Mexico and Mexico ought to have grasped that Americans would have varying ways. In like way, Texas was endeavoring to wind up some piece of the United States, which recommended that the United States had an advantage to go to war with Mexico. Since Mexico couldn’t address the vast majority of its space, they welcomed Americans in. Since Americans were settling in a uninhabited Mexican domain, the degree of Americans to Mexicans broadened (Doc A). Finally, the American way of life acknowledged control, and requested unmistakable rights. In Document C, Velasco-Marquez said the arrangement set apart among Texas and the U.S. furthermore, also the way that Texas ought to have been joined to the U.S. was an appearing of war. Texas had the advantage to be a touch of the U.S., and if Mexico thought about this as a display of war with Texas, by then the U.S. had the advantage to be fused additionally (Doc C). At long last, James Polk communicated, “The strike was undermined exclusively in light of the way that Texas had picked… to add herself to our Union” (Doc B). By then America had the advantage to express war. Right when Mexico demonstrated debilitating vibe to Texas, the United States had an advantage to go to war with Mexico since Texas was a free republic and anticipated that would twist up obviously a bit of the United States. From these promoters, it can be expected that the United States was protected into going to war with Mexico.