Sambo is the official combat sport and tactical system of the Russian special forces. It was developed by the Soviet Red Army to better their hand-to-hand as well as CQB fighting skills. The techniques have their roots in Judo, Greco Roman and Catch wrestling styles, but also have been improved to better suit the then needs of the Russian army. It evolved into a unique style of fighting, and is a martial art in it’s own right. Apart from the Tactical system there are two styles of Sambo with regards to Combat Sports that are practiced presently Sport Sambo and Combat Sambo.
Sport Sambo is very similar to Judo, with a few minor differences. Sambo allows leg locks, which are illegal in Judo; but bans the use of chokes. Combat Sambo allows punches, kicks, takedowns and submissions. There are world championships held, and its part of the Asian Games as a combat sport.