Haidong Gumdo is a term used to describe a couple of slightly differing styles of Korean sword martial arts. Haidong Gumdo is also sometimes referred to as Haedong Kumdo, and derives from a standard style of Korean Kumdo fighting. The term was coined in 1982, and since then has grown into a rather large fighting technique, with a couple of major organizations that practice their own styles and have their own regulations for combat.