Clarke is a career submarine officer who served aboard USS Indianapolis (SSN 697), USS Kentucky (SSBN 737) and USS Cheyenne (SSN 773) before commanding USS Rhode Island (SSBN 740) (GOLD) from August 2002 to July 2005. While in command, his crew earned three consecutive Battle Efficiency “E” Awards and numerous departmental awards. Later he served as commander of Submarine Squadron (SUBRON) 2 from July 2009 to May 2011.
His shore assignments include tours as assistant intelligence and special projects officer on the staff of Commander, Submarine Forces, U.S. Pacific Fleet; squadron engineer for SUBRON-20 and staff officer at Supreme Headquarters, Allied Powers Europe (SHAPE).
Other staff assignments following command include submarine operations officer on the combined staff of Commander U.S. Naval Forces Europe, Commander U.S. 6th Fleet and Commander Task Force 69; special assistant to the director, Naval Nuclear Propulsion for Personnel Policy and Training; director for operations, Commander Submarine Forces Atlantic; and assistant deputy director for Regional Operations and Force Management (J35) in the Operations Directorate of the Joint Staff.
Clarke is the commander, Joint Task Force Guantanamo, comprised of some 2100 personnel charged with the Safe, Humane, Legal and Transparent care and custody of law of war detainees.
He assumed command in November 2015 following assignment as deputy director, Joint Interagency Task Force South.
Updated 4 January 2016