Mexico surrendered all territory between western Texas and the Pacific Ocean. What was this area called?

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In the United States, the 1.36 million km² (525,000 square miles) of the area between the Adams-Onis and Guadalupe Hidalgo boundaries outside the 1,007,935 km2 (389,166 sq mi) claimed by the Republic of Texas is known as the Mexican Cession.

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