Ju Jitsu, also known as Ju Jitsu, Ju Jutsu, and Jiu-Jitsu (The Gentle Art), is an ancient martial art used by the Samurai warriors of war-torn Japan. The art itself consists of punches, kicks, throws, ground-grappling, and weapons. Jujitsu techniques rely heavily on leverage, so you don't have to be extremely strong to train.