Was The War Against Mexico Necessary?

Was the war against the United States and Mexico necessary?
“The war is waged against an unoffending people, without just or adequate cause, for the purposes of conquest; with the design to extend slavery; in violation of the Constitution, against the dictates of justice, of humanity, the sentiments of age in which we live, and the precepts of the religion we profess.” The war between the United States and Mexico had a lot of conflict between each other, and their tensions evolved over time. Although the United States war against Mexico resulted in the gaining of America´s most valuable land, the war itself was unjust because of the increase in slavery, Texans had greedy actions, and President Polk provoked the war.
Texas had an increase in slavery when it was annexed to the United States. According to Document C the text states, “The immediate cause and main goal of this war, led by the slaveholders of this
Polk, the 11th U.S President provokes the United States and Mexico war. For one thing, according to Document D, where the text states “such fair and equitable principles as would lead to permanent relations of the most friendly nature induced me… diplomatic relations… it was plainly our duty to extend our protection over her citizens and soil…” The Mexicans didn’t want to fight, only to protect their borders but the Americans made the confrontation inescapable. President Polk forced the Mexican troops to fight the Americans by stationing them. Another key point to support the claim that President Polk provoked the war is according to Document D, the text states, “regulate and adjust our boundary… the invasion was threatened solely because Texas had determined, in accordance with a solemn resolution of the Congress of the United States, to annex herself to our Union…” President Polk forced Mexico to react by making troops go directly on Mexico territory. He used this as an excuse to provoke the war against the United States and