Francis Marion (c. 1732 – February 27, 1795), also known as the Swamp Fox, was a military officer who served in the American Revolutionary War (1775–1783). Acting with the Continental Army and South Carolina militia commissions, he was a persistent adversary of the British in their occupation of South Carolina and Charleston in 1780 and 1781, even after the Continental Army was driven out of the state in the Battle of Camden. Though Marion never commanded a large army or led a major battle, his use of irregular methods of warfare makes him one of the fathers of modern guerrilla warfare and maneuver warfare, and he is noted as an ancestor of the U.S. Army Rangers and the 75th Ranger Regiment.