Secretary of defense list

OUSD A&S Leadership

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Acquisition & Sustainment Leadership

Steven J. Morani

Performing the Duties of Under Secretary of Defense for Acquisition & Sustainment

PhotoBiography

Brent G. Ingraham

Performing the Duties of Deputy Under Secretary of Defense for Acquisition & Sustainment

PhotoBiography

Assistant Secretary of Defense (Acquisition)

James A. Ruocco

Performing the Duties of Assistant Secretary of Defense for Acquisition

PhotoWebsite

John M. Tenaglia

Acting Principal Deputy Assistant Secretary of Defense for Acquisition

PhotoBiographyWebsite

John M. Tenaglia

Principal Director, Defense Pricing, Contracting, and Acquisition Policy

PhotoBiographyWebsite

Deputy Assistant Secretary of Defense for Strategic, Space, and Intelligence Portfolio Management

Website

Dr. Amy S. Smith-Carroll

Deputy Assistant Secretary of Defense for Platform and Weapon Portfolio Management

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Assistant Secretar

Mark Averill

Mr. Mark F. Averill received his appointment as Acting Secretary of the Army from President Donald J. Trump on January 20th, 2025, after serving as a member of the Senior Executive Service since June 2009. As Acting Secretary of the Army, Mr. Averill is responsible for leading the Department of the Army, including all policy, operational, and resource matters, while ensuring the Army's readiness and strategic priorities are met. The Secretary has the authority to conduct all Department of the Army affairs subject only to the direction, authority, and control of the Commander in Chief and the Secretary of Defense.

Prior to his appointment, Mr. Averill served as the Administrative Assistant to the Secretary of the Army, where he was the Senior Career Civilian in the United States Army. In that role, he provided direct administrative and management support to the Headquarters, Department of the Army (HQDA), and enterprise-level services to Army-wide organizations. From December 2013 to January 2022, Mr. Averill served as the Deputy Administrative Assistant to the Secre

Lloyd Austin

American general (born 1953)

For other people with the same name, see Lloyd Austin (disambiguation).

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Lloyd Austin

Official portrait, 2023

In office
January 22, 2021 – January 20, 2025
PresidentJoe Biden
Deputy
Preceded byMark Esper
Succeeded byPete Hegseth
In office
March 22, 2013 – March 30, 2016
PresidentBarack Obama
Preceded byJim Mattis
Succeeded byJoseph Votel
In office
February 8, 2012 – March 8, 2013
PresidentBarack Obama
Preceded byPeter W. Chiarelli
Succeeded byJohn Campbell
In office
August 9, 2009 – June 30, 2010
PresidentBarack Obama
Preceded byStanley A. McChrystal
Succeeded byWilliam E. Gortney
Born

Lloyd James Austin III


(1953-08-08) August 8, 1953 (age 71)
Mobile, Alabama, U.S.
Spouse

Charlene Banner

(m. 1980)​
Education
Signature
Branch/serviceUnited States Army
Years of service1975–2016
RankGeneral
Commands
Battles/wars
Awards