​San Kil Mu Sul is a dynamic and practical martial art designed by David SGRO, based on the Combatives Course he created and taught to the US Special Forces ("Green Berets"). In June 2000 he was contracted to teach 2/3 SFG (A) pre and post 9/11. This unique form of self-defense draws from Tang Soo Do, FMA (Filipino Martial Arts) Stick and Knife Fighting, Japanese Ju-Jitsu,  and Brazilian Jiujitsu. Designed to excel in realistic scenarios, San Kil Mu Sul emphasizes extreme efficiency in its techniques, making it an effective and valuable martial art.