What Was The Purpose For The Mexican American War

What was the purpose for the Mexican American war? Well many people have their sides to what happened and if the U.S was justified or unjustified with going to war with Mexico.What was the war about? Who did it involve? The war was against the U.S and Mexico for disputed territory which is now Texas and the Western part of the United States.Who fired the first shots to start the war? It was Mexico, but why did they do it? I think it was unjustified to go to war with Mexico, for many reasons. Slavery was a big part of the United States and whenever Manifest Destiny happened they brought slaves to Texas which Mexico was against slaves.That made Mexico mad.The fact that the U.S brought slaves into Mexican territory was bad because Mexico abolished slavery. ¨Slaveholders crossed the Sabine with their slaves, in defiance of the Mexican ordinance of freedom.¨
¨The Congress of Texas, by its act of December 19, 1836, had declared the Rio del Norte to be the boundary of that republic...¨From Mexico's point of view, the annexation of Texas to the United States was inadmissible for both legal and security reasons.Thus , when the Mexican government learned of the treaty signed between Texas and the United States in April 1844,it...would consider such an act a declaration of