Japan's Minister of Defense Toshimi Kitazawa pilots one of the Marine Corps' Chemical, Biological Incident Response Force's robots at Yokota Air Base, Japan, April 23. Kitazawa and Air Force Lt. Gen. Burton M. Field, commander of the Joint Support Force and the United States Forces, Japan, were on hand to watch the Marines with the CBIRF and the Japanese Ground Self Defense Forces demonstrate their collective ability to work together in a chemical, biological or nuclear environment.