Systema (Система, literally meaning The System) is a Russian martial art. Training includes: hand to hand combat, grappling, knife fighting and fire arms training as well.
Training involves drills and sparring without set kata. It focuses mainly on controlling the six body levers (elbows, neck, knees, waist, ankles, and shoulders) through pressure point application, striking and weapon applications. Systema is often advertised as being a martial art employed by some Russian Spetsnaz units.
There is no historical "real name" for these arts, a fact which can lead to some confusion. In a sense, the name "Systema" (the system) can be thought of as a generic title comparable to "Kung Fu" ("one who is highly skilled" or "time" and "effort"). The most likely version is that the name Systema was taken from the name given in Russia to a similar martial art before that, the Systema Rukopashnogo Boya (System of hand-to-hand combat).
At least in Mikhail Ryabko's Systema, "The System" is a reference to the various systems of the body (Muscle, Nervous system, respiratory system, etc) as well as elements of Psychology and the Spirit.
description from wikipedia
Go Warrior - Systema