Self-defense defines a civilian activity as opposed to Hand-to-hand combat in a military context. Many styles of martial arts, usually Asian styles, such as Jujutsu, Karate, Taekwondo,Wushu and Ninjitsu are practiced for self-defense. Some styles train almost exclusively for self-defense (Wing Chun, Krav Maga), putting emphasis on the bodies' weakest pressure-points . Others still, are practiced for other reasons and not intended for self-defense at all (eg Tai-Chi, Tae Bo).However, some martial arts that are practiced primarily for sport, such as boxing or judo can be effectively applied for self-defense.