At the end of the Mexican-American War, the United States obtained

The Treaty of Guadalupe Hidalgo ended the Mexican-American War in 1848. Mexico ceded a vast territory to the United States, known as the Mexican Cession, which included present-day California, Nevada, Utah, and parts of several other states. The Louisiana Territory had been acquired earlier from France, and the treaty did not create three new slave states or give the United States Veracruz.

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