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Thomas A. Constable

Principal Deputy Assistant Secretary of Defense for Readiness

Mr. Constable is the Principal Deputy Assistant Secretary of Defense for Readiness.  He is the principal staff advisor to the Secretary of Defense and the Under Secretary of Defense for Personnel and Readiness (USD(P&R)) on all matters related to military readiness.  In that capacity, he oversees the policies and programs that ensure the Total Force (Active, National Guard, and Reserve) of the United States is ready for the missions assigned by the President and the Secretary of Defense. He oversees the Defense Readiness Reporting System and the Readiness Recovery Framework, used to enable the Military Services’ readiness recovery planning and inform future readiness requirements. Mr. Constable is responsible for the policy and oversight of force training and education, Defense language programs, operational safety, and the Occupational Health of over 2.7 million Department of Defense Military and civilian employees.

Mr. Constable entered the Senior Executive Service in 2015 as the Associate Director for Military Operations in the Office of the Under Secretary of Defense (Comptroller), where he served as a senior representative and principle advisor for the Services’ operation and Maintenance activities to include military readiness, Combatant Commands, Working Capital Fund operations, and all DoD civilian pay.  In 2018, he returned to his Army roots as the Senior Advisor for Army Intelligence Resources, including the Military and National Intelligence Programs (MIP and NIP).  Previously, Mr. Constable served as the Assistant Chief of Staff (G8) for the United States Army, Africa, in Vicenza, Italy, where he was the senior financial manager and primary resource integrator for Army military and theater security cooperation objectives in Africa. 

Mr. Constable is a retired Soldier, having enlisted in the Army in 1987 and later commissioned as an officer in the Field Artillery; he retired from active duty in 2008.  He received Master’s Degrees in Business Administration and Public Administration from Syracuse University, and a Graduate Certificate in Conflict Resolution from The Maxwell School of Citizenship and Public Affairs.  His awards include the Legion of Merit and the Superior Civilian Service Award, and he is a proud recipient of the Leonard F. Keenan Award for Distinguished Service.