At the end of the mexican-american war, the united states paid $15 million and left mexico city in exchange for

At the end of the Mexican-American War, the United States paid $15 million and left Mexico City in exchange for western lands from the Louisiana Purchase and beyond & the Gadsen Purchase.

The Gadsen Purchase was a purchase of a strip of land located in Present-day New Mexico & Arizona that completed the today's border of the US country.

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the answer is prolly b

your mom