Rear Admiral Hennegan is commander, Submarine Group 9, headquartered at Naval Base Kitsap-Bangor, Silverdale, Wash. He is responsible for the readiness, training, logistical, administrative and personnel support of all U.S. ballistic missile (SSBN) and guided missile (SSGN) submarines in the Pacific Northwest. He assumed duty as commander, Submarine Group 9 on Oct. 29, 2010.
His tours at sea include assignments in USS Haddock (SSN 621), USS James Madison (SSBN 627), and USS Grayling (SSN 646). Hennegan commanded USS Buffalo (SSN 715) and Submarine Squadrons 6 and 8.
Ashore, Hennegan served on the staffs of the secretary of Defense, the chief of Naval Operations, and the director, Naval Nuclear Propulsion. He served in fleet support positions on the staff of commander Submarine Force, U.S. Pacific Fleet and at Submarine Squadron 16. He also served as the deputy chief of Legislative Affairs for the Navy and on the Department of Defense Transition Task Force in the Office of the Secretary of Defense. Hennegan most recently served as deputy commander, Joint Functional Component Command for Global Strike at U.S. Strategic Command.
A 1980 graduate of the United States Naval Academy, Hennegan completed studies in the Navy’s Nuclear Propulsion Program. He earned a Master of Science degree in Operations Research from the Naval Postgraduate School, completed the Harvard Business School Advanced Management Program, the National Securities Studies Program at George Washington University, and the Seminar XXI Program at the Massachusetts Institute of Technology.
His awards include the Defense Superior Service Medal, the Legion of Merit, and the Vice Admiral Stockdale Award for Inspirational Leadership.
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