The tract of land the united states received at the end of the mexican-american war in 1848 was called

The tract of land the United States received at the end of the Mexican-American War in 1848 was called the Mexican Cession.

Explanation:

The Mexican Cession was a political event in the history of the United States and Mexico that led to California and New Mexico joining the United States.  

Pursuant to the idea of Manifest Destiny, James Polk wanted to expand the territory of the United States and to this end annexed Texas. Disputes arising from the western border of the Republic of Texas triggered a war with Mexico that broke out in 1846. The president wanted through the war to obtain from the southern neighbor the territory of New Mexico and California, which he had previously tried to buy for $30 million.

In 1848 the war ended with the Treaty of Guadalupe Hidalgo. On its basis, Mexico ceded Upper California and New Mexico to the USA, and also confirmed the Texas border on the Rio Grande River. In return, Polk paid $ 15 million to its southern neighbor.

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