james k. polk when in presidency wnated to expand the united states a much as he could and didn't want to use forces unless he needed to.
we need to expand the united states more.
polk sent a representative to mexico to request to buy mexico's land but the denied the request.
congress voted to annex texas but mexico got salty
April 25, 1846 Mexican Troops shot at US troops who were patrolling the Rio Grande. Sixteen Americans were killed or wounded.This was just the Excuse for war that Polk has been waiting for. Mexico charges Has invaded our territory and shed Americans blood upon Americans Soil’.Two days after Polk's speech Congress Declared war called The Mexican-American War.
A few Months Later General Stephen Kearny led the Army of the West land out of Kansas with orders to occupy New Mexico and then COntinue west to California.Mexican Opposition melted away in front of Kearny's army. And Americans Took Control of New Mexico without Firing a shot
U.s troops under general zachary taylor battled their way south from texas. Zachary taylor was no nonsense general, he was known as old, rough, and ready.in february 1847, the two forces met near a ranch called buena vista and fought for two days straight.