KeyAppointees serving in offices that did not require Senate confirmation.Appointees confirmed by the Senate.Appointees awaiting Senate confirmation.Appointees serving in an acting capacity.Appointees who have left office or offices which have been disbanded.Nominees who were withdrawn prior to being confirmed or assuming office.
Appointments (first administration)
Main Department Office Nominee Assumed office Left office Secretary of Defense Mark EsperJune 24, 2019 July 15, 2019 July 23, 2019 November 9, 2020 Chris Miller November 9, 2020 January 20, 2021 Deputy Secretary of Defense David NorquistJanuary 2, 2019July 23, 2019 July 31, 2019 Chief Management Officer of Defense Lisa Hershman December 30, 2019 January 1, 2021 December 1, 2018 December 30, 2019 General Counsel of Defense Paul C. Ney Jr. August 20, 2018 Inspector General of Defense Jason Abend Upon Senate confirmation Sean O'Donnell April 6, 2020 Chief Information Officer of Defense Dana Deasy December 23, 2019 May 7, 2018 Assistant Secretary of Defense(Legislative Affairs) Ann Thomas "A.T." Johnston July 27, 2020 Chairman of the Joint Chiefs of Staff Mark A. Milley September 30, 2019 Vice Chairman of the Joint Chiefs of Staff John E. Hyten November 21, 2019 Under Secretary of Defense(Acquisition and Sustainment) Ellen Lord August 10, 2017 Deputy Under Secretary of Defense(Acquisition and Sustainment) Alan Shaffer January 28, 2019 Assistant Secretary of Defense(Nuclear, Chemical, and Biological Defense Programs) Vacant Assistant Secretary of Defense for Acquisition Kevin M. Fahey February 18, 2018Assistant Secretary of Defense(Sustainment) Jordan Gillis March 30, 2020 Director of Cost Assessment and Program Evaluation John E. Whitley August 16, 2019Under Secretary of Defense(Research and Engineering) Michael Kratsios July 13, 2020Deputy Under Secretary of Defense(Research and Engineering)Mark J. Lewis July 13, 2020 Assistant Secretary of Defense(Energy, Installations and Environment) Lucian Niemeyer August 2, 2017 Director of Operational Test and Evaluation Robert Behler December 11, 2017 Under Secretary of Defense(Policy) Anthony Tata November 10, 2020 James H. Anderson February 29, 2020 November 10, 2020 Deputy Under Secretary of Defense(Policy) June 8, 2020 November 10, 2020 Thomas M. Williams November 10, 2020 Assistant Secretary of Defense(Strategy, Plans, and Capabilities)Victorino Mercado June 8, 2020 Assistant Secretary of Defense(Homeland Defense and Global Security) Kenneth Rapuano June 2, 2017 Assistant Secretary of Defense(International Security Affairs) Michael Cutrone September 1, 2020 Assistant Secretary of Defense(Space Policy) Justin Johnson October 29, 2020 Assistant Secretary of Defense(Health Affairs) Thomas McCaffery August 5, 2019 Assistant Secretary of Defense(Special Operations and Low-Intensity Conflict) Joseph Tonon November 10, 2020Assistant Secretary of Defense(Indo-Pacific Security Affairs) David Helvey January 1, 2020 Under Secretary of Defense(Comptroller) Thomas Harker June 26, 2020 Principal Deputy Under Secretary of Defense(Comptroller)Vacant Under Secretary of Defense(Personnel and Readiness) Matthew Donovan March 23, 2020 December 13, 2019 March 3, 2020 Deputy Under Secretary of Defense(Personnel and Readiness) William Bushman July 29, 2019 Assistant Secretary of Defense(Manpower and Reserve Affairs) Virginia Penrod December 13, 2019 Assistant Secretary of Defense(Readiness) Tom Constable January 31, 2020 Under Secretary of Defense(Intelligence) Joseph D. Kernan December 11, 2017 November 10, 2020 Ezra Cohen November 10, 2020 Deputy Under Secretary of Defense(Intelligence and Security) Vacant National Security Agency Inspector General of the National Security Agency Robert Storch January 2, 2018 Permanent Joint Board on Defense Chairman of the United States Section of the Permanent Joint Board on Defense for the United States and Canada Christopher D. Miller National Reconnaissance Office Director of the National Reconnaissance Office Christopher Scolese August 5, 2019
Department of the Army
Office Nominee Assumed office Left office Secretary of the Army Ryan McCarthy July 23, 2019 September 30, 2019 September 30, 2019 General Counsel of the Army James E. McPherson January 2, 2018 March 25, 2020 Under Secretary of the Army James E. McPherson July 23, 2019 March 25, 2020 March 25, 2020 Assistant Secretary of the Army(Acquisition, Logistics, and Technology) Bruce D. Jette January 2, 2018 Assistant Secretary of the Army(Civil Works) R. D. James February 26, 2018 Assistant Secretary of the Army(Financial Management and Comptroller) John E. Whitley September 26, 2018 Assistant Secretary of the Army(Installations, Energy and Environment) Alex A. Beehler January 10, 2019 Assistant Secretary of the Army(Manpower and Reserve Affairs) Casey Wardynski January 16, 2019 United States Military Academy Member of the Board of Visitors to the United States Military Academy Meaghan C. Mobbs Jim Nicholson David Urban Guy C. Swan III
Department of the Navy
Office Nominee Assumed office Left office Secretary of the Navy Kenneth Braithwaite May 29, 2020 General Counsel of the Navy Robert Sander January 6, 2020 Under Secretary of the Navy Greg Slavonic April 24, 2020 Assistant Secretary of the Navy(Manpower and Reserve Affairs)June 11, 2018 Catherine Kessmeier June 24, 2020Assistant Secretary of the Navy(Energy, Installations and Environment)Charles WilliamsApril 24, 2020Assistant Secretary of the Navy(Financial Management and Comptroller)Thomas HarkerJanuary 2, 2018 Assistant Secretary of the Navy(Research, Development and Acquisition) James Geurts December 5, 2017 United States Naval Academy Members of the Board of Visitors to the United States Naval Academy Anthony W. Parker George Gould Ronny Jackson Sean SpicerJonathan D. Hiler
Department of the Air Force
Office Nominee Assumed office Left office Secretary of the Air Force Barbara Barrett October 18, 2019General Counsel of the Air ForceThomas E. AyresFebruary 21, 2018 Under Secretary of the Air Force Shon J. Manasco December 27, 2019 Assistant Secretary of the Air Force(Acquisition)Will RoperMarch 9, 2018Assistant Secretary of the Air Force(Financial Management & Comptroller)John P. RothJanuary 2, 2018Assistant Secretary of the Air Force(Installations, Environment & Energy)John HendersonFebruary 20, 2018 Assistant Secretary of the Air Force(Manpower & Reserve Affairs) John Fedrigo December 27, 2019 United States Air Force Academy Member of the Board of Visitors to the United States Air Force Academy David Ehrhart Robert Gleason Douglas Lengenfelder Michael Wynne
Previous officeholders (first administration)