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Retuinskih System ROSS (Russian: ????, short for ?????´????? ???´?????????? ?????´?? ????????´??; English transliteration: Rossiyskaya Otechestvennaya Sistema Samozashchity; translated as Russian Native System of Self-Defense) is a martial system trademarked by Russian General Alexander Retuinskih related to Systema. ROSS is its official name given by the All-Russian Federation of Russian Martial Arts (RFRMA). It is conceived more as a methodology of performance enhacement for combat, applicable to any martial art, rather than a closed system.
General Retuinskih’s experience includes being a USSR Boxing and Combat Sambo champion, and a Sambo and Judo Master of Sports champion, as well as being the partner to Alexey Kadochnikov in Kadochnikov’s Systema until their separation in 1991.
In 1991, Alexander Retuinskih patented Rossijskaya Otechestvennaya Systema Samozashchity or in acronym, R.O.S.S., “Russian Native System of Self-defense.” … The ROSS educational system was patented as “Know-How” (registered with the State enterprise “Informpatent” Committee of the Russian Federation by patent and trademark of April 4, 1991).
Russian Martial Art R.O.S.S. gained its first appearance and proliferation due to the efforts of USA National Sambo Team Coach and Champion Scott Sonnon, most notably in the 1999 Special “Russian Martial Arts” Edition issue of World of Martial Arts Magazine, “Secrets of Russian Martial Arts” Black Belt Magazine (February 2001), “Secrets of Russian Martial Arts Part 2” Black Belt Magazine (October, 2001). Coach Sonnon was appointed the North American Director of the Governing Body for Russian Martial Art R.O.S.S. in May 1996. 
In 2007, Alexander Retuinskih was voted one of the “100 Most Influential People in Russia”. General Retuinskih presented ROSS in the History Channel’s martial art documentary entitled “The Human Weapon Episode: Sambo Russia’s Extreme Fighting”.