Admiral Bull is a native of Oak Harbor, Washington. He is a 1988 graduate of the University of Idaho, where he received a Bachelor of Science in Computer Science.
Prior to his arrival at Joint Improvised-Threat Defeat Organization (JIDO), he served as the special assistant for Naval Air Systems Command. Designated a naval flight officer in September 1989, Bull’s early flying assignments as a bombardier navigator include Attack Squadron (VA) 128 at Naval Air Station Whidbey Island and VA-196 aboard USS Independence (CV 62) during Operation Desert Shield. He was assigned to Fighter Squadron (VF) 101 as one of the first naval flight officer (NFO) selected for transition to the F-14 Tomcat community and again as an instructor, later reporting to VF-24 aboard USS Nimitz (CVN 68), flying missions in support of Operation Southern Watch, and VF-14 aboard USS Theodore Roosevelt (CVN 71), where he was selected as the NFO of the Year for his combat performance and tactical expertise.
Shore tours include a legislative fellow tour with Senator John McCain, senior policy officer on the Joint Staff (J-34 Anti-Terrorism Office), aviation program manager in the Office of Legislative Affairs, and most recently the chief of staff for Commander, Naval Air Forces (CNAF).
Command operational assignments include the Strike Fighter Squadron (VFA) 41 Black Aces aboard USS Nimitz (CVN 68), VFA-122 Flying Eagles, the west coast F/A-18A-F Fleet Replacement Squadron (FRS), and Carrier Air Wing 9 aboard USS John C. Stennis (CVN 74). Bull assumed command of Chief of Naval Air Training in July 2015.
Bull is currently the deputy director for operations, Joint Improvised-Threat Defeat Organization (JIDO). He is responsible for supporting combatant commanders with rapidly fused operational information, intelligence and technology to enable the defeat of threat networks who employ improvised threats such as improvised explosive device as their weapon of choice. He assumed these duties in 2018.
His decorations include the Legion of Merit (two awards), Defense Meritorious Service Medal, Meritorious Service Medal (two awards), Air Medal (three awards with Combat “V”), Strike/Flight Medal (six awards), Navy and Marine Corps Commendation Medal with a Gold Star, Navy Achievement Medal (two awards) and various campaign, unit, and service awards. He has accumulated more than 4,800 flight hours and more than 950 arrested landings.