Self-defense is a countermeasure that involves defending the health and well-being of oneself from harm. The use of the right of self-defense as a legal justification for the use of force in times of danger is available in many jurisdictions.
This telescopic steel security baton is sold to the public in Japan (2009).
Demonstration of a jujutsu defense against a knife attack. Berlin, 1924.
A Bangladesh Rifles Senior Warrant Officer (left in yellow/green outfit) applies a mechanical advantage control/hold to a United States Marine during a demonstration.
Image: Knee Kick to Groin
Martial arts are codified systems and traditions of combat practiced for a number of reasons such as self-defence; military and law enforcement applications; competition; physical, mental, and spiritual development; entertainment; and the preservation of a nation's intangible cultural heritage.
United States Marine practicing martial arts, 2008
Strikes: punching and kicking techniques displayed at the Banteay Srei (967 A.D.) in Cambodia.
Grappling: bas-relief of grappling techniques at Prambanan (9th century) in Indonesia.
Detail of the wrestling fresco in tomb 15 at Beni Hasan