United States government agency management and oversight body
Office of the Secretary of Defense OSD
OSD Identification Badge
Agency overview
Formed
1947
Jurisdiction
General management and oversight of the Department of Defense components
Headquarters
Pentagon
Parent agency
Department of Defense
Website
defense.gov/osd
United States Armed Forces
Executive departments
Department of Defense
Department of Homeland Security
Staff
Office of the Secretary of Defense
Joint Chiefs of Staff
Military departments
Department of the Army
Department of the Navy
Department of the Air Force
Military services
United States Army
United States Marine Corps
United States Navy
United States Air Force
United States Space Force
United States Coast Guard
Command structure
Unified combatant commands
Africa Command
Central Command
European Command
Indo-Pacific Command
Northern Command
Southern Command
Cyber Command
Space Command
Special Operations Command
Strategic Command
Transportation Command
Combat support agencies
Defense Contract Management Agency
Defense Health Agency
Defense Information Systems Agency
Defense Intelligence Agency
Defense Logistics Agency
Defense Threat Reduction Agency
National Geospatial-Intelligence Agency
National Security Agency
Central Security Service
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The Office of the Secretary of Defense (OSD) is a headquarters-level staff of the United States Department of Defense. It is the principal civilian staff element of the U.S. Secretary of Defense, and it assists the Secretary in carrying out authority, direction and control of the Department of Defense in the exercise of policy development, planning, resource management, fiscal, and program evaluation responsibilities. OSD (along with the Joint Staff) is the Secretary of Defense's support staff for managing the Department of Defense, and it corresponds to what the Executive Office of the President of the U.S. is to the U.S. president for managing the whole of the Executive branch of the federal government.
OSD includes the immediate offices of the Secretary (SECDEF) and the Deputy Secretary of Defense (DEPSECDEF), as well as the Under Secretary of Defense for Research and Engineering; Under Secretary of Defense for Acquisition and Sustainment; Under Secretary of Defense for Policy; Under Secretary of Defense (Comptroller); Under Secretary of Defense for Personnel and Readiness; and Under Secretary of Defense for Intelligence & Security. All of these positions are Presidential appointments which require U.S. Senate confirmation, as do each of their sole deputies.
Other positions include the Assistant Secretaries of Defense, Assistants to the Secretary of Defense, General Counsel, Director, Operational Test and Evaluation, Director of Administration and Management, and other staff offices that the Secretary establishes in order to assist in carrying out their assigned responsibilities.
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under secretary Sasha Baker. TheOfficeofthe Under SecretaryofDefense for Policy is the principal staff element ofthesecretaryofdefense in the exercise...
security". The Department ofDefense is headed by thesecretaryofdefense, a cabinet-level head who reports directly to the president ofthe United States...
The Under SecretaryofDefense for Research and Engineering, abbreviated USD (R&E), is a senior official ofthe United States Department ofDefense. The...
The Under SecretaryofDefense for Acquisition and Sustainment, or USD (A&S), is the Principal Staff Assistant (PSA) and advisor to theSecretaryof Defense...
SecretaryofDefense is a title used for many high-level executive positions in theOfficeoftheSecretaryofDefense within the U.S. Department of Defense...
Under SecretaryofDefense (DUSD) is the title for several high-ranking posts in the U.S. Department ofDefense, requiring appointment by the president...
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Retrieved 2 October 2022. "Major General David W. Abba". Officeofthe Under SecretaryofDefense (Acquisition and Sustainment). Retrieved 18 December 2023...
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