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 ventured westward in light of the way that there was more undeveloped land. Since most by a wide margin of the west was a part of Mexico, this was a troublesome dilemma. Fortunately, Mexicans in like way welcomed pioneers in their western domains since much of their territory was undeveloped. Mexico welcomed Americans to settle in their property. In any case, the two nations had differences. It would only have been a matter of 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. 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 independence 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 alligned with America. The verbal encounter that took after resulted in the death 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 endeavored every effort at trade off. The measure of tolerance had been exhausted even before the present information from the backcountry of the Del Norte. In any case, now, … Mexico has passed the breaking point of the United States, has assaulted our space and shed American blood upon the American soil” (Doc B). Before Texas transformed into a part 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 searching for increase of subjugation, (our own subjects denied) the epic surenesses of American open door” (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 slaves 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 an 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 end up becoming a part of the United States. From these reasons, it can be presumed that the United States was advocated into going to war with Mexico.