Avi Nardia is a martial artist, founder of the defence martial art KAPAP. In the course of 24 years as a reserve officer, he (Major, IDF Res.) has served as an official hand-to-hand instructor, safety officer and served in the Special Counter Terror Unit. He has also trained Police agencies and armed forces all over the world, from Police patrol and corrections officers to SWAT, SRT and SERT team members along with Army, Marine and counter terror units and Special Forces.