In the War of 1812 Jackson defeated the Creek warriors, tacit allies of the British, at Horseshoe Bend, Ala. (Mar., 1814) after a strenuous campaign and won the rank of major general in the U.S. army. He was given command of an expedition to defend New Orleans against the British. The decisive victory gained there over seasoned British troops under Gen. Edward Pakenham, though it came after peace had already been signed in Europe, made Jackson the war's one great military hero.
In 1818 he was sent to take reprisals against the Seminole, who were raiding settlements near the Florida border, but, misinterpreting orders, he crossed the boundary line, captured Pensacola, and executed two British subjects as punishment for their stirring up the Native Americans. He thus involved the United States in serious trouble with both Spain and Great Britain. John Q. Adams, then Secretary of State, was the only cabinet member to defend him, but the conduct of Old Hickory, as Jackson was called by his admirers, pleased the people of the West. He moved on to the national scene as the standard-bearer of one wing of the old Republican party.
The Columbia Electronic Encyclopedia, 6th ed. Copyright © 2012, Columbia University Press. All rights reserved.