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Louisiana Purchase
The U.S. government purchase a huge chunk of land from the french in 1803. -
British Cession
Established the Britain and U.S. border at the 49th Parallel. -
Adams-Onis
the U.S. aquired the Florida Territory -
Texas Annexation
Texas became a state in 1845. -
Mexican Cession
A boundary dispute between the U.S. and Mexico was settled. -
Oregon Territory
The border dispute between britain and the U.S. was settled with the oregon treaty. -
Gadsen Purchase
The U.S. purchased southern Arizona and southwestern New Mexico.