Doug Cook holds a 6th Dan Black Belt in the Korean martial art of taekwondo and is certified as an instructor and in rank by the United States Taekwondo Association and the Kukkiwon. He is a six-time gold medalist. He holds a D3 status as a US Referee and has received high honors from Korea. Master Cook is credited with the creation of the Chosun Women's Self-Defense Course. He has also provided training for the US Army National Guard prior to military operations and has instructed agents from the Department of Homeland Security, the New York Police Department and the Bronx CountyMaster Cook owns and operates the Chosun Taekwondo Academy located in Warwick, New York -" an institute specializing in traditional martial arts instruction and Ki, or internal energy, development.