Brazilian Jiu Jitsu is one of the most effective, reality-based fighting systems in the world. Created by the Gracie Family in Brazil the basic premise of Jiu-Jitsu is that 90% of fights end up on the ground. As such, Jiu-Jitsu is focused primarily on effective ground fighting. The goal is to put an opponent into situations on the ground where joint locks and/or chokes can be applied to force him/her to submit.