Andrew Jackson was a soldier.
Andrew Jackson . In 1801 , Jackson was appointed colonel in the Tennessee militia , and was elected its commander the following year . He led Tennessee militia and U.S. Army regulars during the Creek War of 1813 -- 1814 , winning a major victory at the Battle of Horseshoe Bend . The subsequent Treaty of Fort Jackson required the Creek surrender of vast lands in present-day Alabama and Georgia . Following the conclusion of the War of 1812 , Jackson led U.S. forces in the First Seminole War , which helped produce the Adams -- Onís Treaty of 1819 and the transfer of Florida from Spain to the United States . Treaty of Fort Jackson . The U.S. force , led by General Andrew Jackson , consisted mainly of the West Tennessee Militia and 39th United States Infantry , allied with several groups of Cherokee and Lower Creek friendly to the American side .