The treaty effectively halved the size of Mexico and doubled the territory of the United States. This territorial exchange had long-term effects on both nations. The war and treaty extended the United States to the Pacific Ocean, and provided a bounty of ports, minerals, and natural resources for a growing country.
Moreover, how did the Treaty of Guadalupe Hidalgo affect westward expansion?
Under the Treaty of Guadalupe Hidalgo, which settled the Mexican-American War, the United States gained more than 500,000 square miles (1,300,000 square km) of land, expanding U.S. territory by about one-third.
Secondly, what was the significance of the Treaty of Guadalupe Hidalgo quizlet?
The Treaty of Guadalupe Hidalgo was signed in 1848, the treaty allowed the United States to purchase California, Arizona, New Mexico, Texas, Nevada, Utah, and Colorado for fifteen million dollars, doubling the size of the United States, but also displacing millions of Mexican citizens in new American territory.