Video The Kadochnikov Systema: Four Principle Defence Sectors0Comments by Alex Ivanov This video is about 4 principle defence sectors. Remember to press your elbow to your waist and provide protection from the side. You should learn how to work with your arm the way you do it with a sword. Facebook Twitter Digg Tumblr Aleksey alekseyevich kadochnikov close combat kadochnikov systema martial art for self defense Russian hand to hand combat Russian martial art russian spetsnaz training systema Alex Ivanov Leave a Reply Cancel ReplyYour email address will not be published. Δ