By Mason Betts
Texas- Mexican War
President Polk didn't trust Zachary Taylor. He also considered him a rival. Instead of reinforcing Taylor's troops to capture Mexico City, he sent in another army led by General Winfield Scott. Scott advanced on Mexico City and captured it in August of 1847.
With the United States in control of their capital city and much of the country divided, the Mexicans agreed to a peace treaty called the Treaty of Guadalupe Hidalgo. In the treaty, Mexico agreed to the border of Texas at the Rio Grande. They also agreed to sell a large area of land to the United States for $15 million. Today this land makes up the states of California, Nevada, Utah, and Arizona. Portions of Wyoming, Oklahoma, New Mexico, and Colorado were also included.