South Korean instructor DK Yoo created his own combat system, which combines as many as 15 martial arts. By and large, this is not a new type of martial arts (as Jeet Kune Do once was, for example), but a competent collective system of techniques from different martial arts, focused on a specific situation. This is not a new, but quite interesting idea and no less interesting implementation.
It must be assumed that master DK Yoo called his system “Systema Korea Headquarters”, although I will not say so, because his website in its informative part is mainly in Korean, and the table of contents also indicates some connection with the martial art of Russian special forces...
You can watch more videos from the practices of master DK Yoo on his youtube channel.
Physics, it’s physics in Korea too! Plus knowledge of anatomy and Will!
ruishi is right, in the first video just after the part "Systema"in the part where it is demonstrated"Eskrima"at 2:27 you can see the T-shirt given out during the training Russian special forces system
Regarding the combat system of Russian special forces. At 1:48 Systema is demonstrated. This is the Russian special forces system developed by M. Ryabko.
It’s kind of stupid + Taking the System (this is the name of the Russian style) as one and the primary sources... this is generally know-how comments =)