Martial arts are codified systems and traditions of combat practices, which are practiced for a number of reasons: as self-defense, military and law enforcement applications, mental and spiritual development; as well as entertainment and the preservation of a nation's intangible cultural heritage.

Although the term martial art has become associated with the fighting arts of eastern Asia, it originally referred to the combat systems of Europe as early as the 1550s. The term is derived from Latin, and means "arts of Mars", the Roman god of war.

this application provides complete tutorial and guide to learn various martial arts techniques. There are martial arts sumo, martial arts mixed, and so forth. A complete tutorial for those of you who learn martial arts techniques.