What is the name of the most popular Russian martial art?

Sambo is the most popular Russian martial art. From the Wikipedia entry: Sambo (Russian: самбо) -- (also called Sombo in the US and sometimes written in all-caps) is a modern martial art, combat sport and self-defense system developed in the former Soviet Union, and recognized as an official sport by the USSR All-Union Sports Committee in 1938, presented by Anatoly Kharlampiev. The word Sambo is an acronym of САМозащита Без Оружия (SAMozashchita Bez Oruzhiya) meaning "self-defense without a weapon" in Russian. Sambo has its roots in traditional folk styles of wrestling such as Armenian Koch, Georgian Chidaoba, Moldovan Trîntǎ, Uzbek Kurash, and Mongolian Khapsagay. According to the International Federation of Associated Wrestling Styles (FILA), Sambo is one of the four main forms of amateur competitive wrestling practiced internationally today, the other three being Greco-Roman wrestling, Freestyle wrestling and Judo. http://en.wikipedia.org/wiki/Sambo_%28martial_art%29