Expantionists dreams realized

 After the the United States annexed Texas in 1845, a clash with Mexico was inevitable. The disjointed Mexican government was no match for the better organized, expantionist US. More important to US history is the result of its victory.

The seventy year old naton gained a third of Mexico's territory. California, Utah, New Mexico, Arizona, Utah, Colorado all emerged as states resulting from the conflict. There emergenece began another crisis over slavery. The Compromise of 1850 and the US Civil War were end results.