Francis Marion (February 26, 1732–February 27, 1795) was a lieutenant colonel in the Continental Army and later brigadier general in the South Carolina Militia during the American Revolutionary War. He became known as the "Swamp Fox" for his ability to use decoys and ambushes to disrupt enemy communications, capture supplies, and free prisoners. His use of guerrilla tactics helped set in motion the decline of open battles in the conflict. Early records indicate that he was a sailor before the Revolutionary War.
Marion is considered one of the fathers of modern guerrilla warfare, and is credited in the lineage of the United States Army Rangers.