Avi Nardia spent 24 years of reserve service in the Israeli Defense Forces and earned the rank of major. He has taught martial arts to police agencies and military groups all over the world and operates the Avi Nardia Academy for martial arts. Albert Timen is a former member of the undercover counterintelligence unit within the Israel Defense Forces with 18 years of operational experience. He has trained numerous special units in close-quarters battle instruction.