The United States in 1846 was not justified in going to war with Mexico. The United States did not have proper justification to respond with violence against the Mexican government. The war with Mexico was also a product of the United States’ belief of manifest destiny. Polk’s over ambition to seize new territory from the Mexicans and disappointment over their refusal to sell him California also possibly played a factor in his willingness to wage war against Mexico. The United States under the leadership of president Polk clearly provoked Mexico into attacking US troops. All these reasons show that the US had no business starting a war with Mexico for territory that was rightfully theirs.
