On Dec. 30, 1853, James Gadsden, U.S. Minister to Mexico, and three envoys of the President of Mexico General Antonio López de Santa Anna Pérez de Lebrón, signed The Gadsden Purchase, or ...

The U.S. made the Gadsden Purchase in 1853 to acquire a nearly 30,000 square-mile region of present-day southern Arizona and southwestern New Mexico in a treaty signed by the American ambassador ...

Threatening military action is wrongheaded, but Donald Trump would be smart to try to buy Greenland from Denmark. The U.S.