Newaza is any type of technique done on the ground, which includes ground defense and offensive techniques.
Often referred to as Brazilian Jiu Jitsu or BJJ, newaza includes ground:
Newaza gives students the ability to defend themselves when taken to the ground, which often happens during a self defense situation.
Shoshin Ryu trains students for all aspects of self defense, and while Newaza is an extremely useful skill to have when on the ground, it’s usefulness is minimized in multiple-attacker situations and weapons attacks. Shoshin Ryu students are taught a broad range of self defense techniques that can be applied standing up, or on the ground, with Newaza being one of the sets of techniques available to them.