The United States secretary of defense (SecDef) is the head of the United States Department of Defense, the executive department of the U.S. Armed Forces, and is a high-ranking member of the federal cabinet. The secretary of defense's position of command and authority over the military is second only to that of the president of the United States, who is the commander-in-chief. This position corresponds to what is generally known as a defense minister in many other countries. The secretary of defense is appointed by the president with the advice and consent of the Senate, and is by custom a member of the Cabinet and by law a member of the National Security Council.
Washington Headquarters Services (WHS) is a Department of Defense (DoD) Field Activity, created on October 1, 1977, to provide administrative and management support to multiple DoD components and military departments in the National Capital Region and beyond.
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 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.
The United States under secretary of defense for policy (USDP) is a high level civilian official in the United States Department of Defense. The under secretary of defense for policy is the principal staff assistant and adviser to both the secretary of defense and the deputy secretary of defense for all matters concerning the formation of national security and defense policy.
The Institute for Defense Analyses (IDA) is an American non-profit corporation that administers three federally funded research and development centers (FFRDCs) – the Systems and Analyses Center (SAC), the Science and Technology Policy Institute (STPI), and the Center for Communications and Computing (C&C) – to assist the United States government in addressing national security issues, particularly those requiring scientific and technical expertise. It is headquartered in Alexandria, Virginia.
The Assistant Secretary of Defense for Networks & Information Integration (ASD(NII)) was an appointed position that provided management and oversight of all DoD information technology, including national security systems. The ASD(NII) also served as the chief information officer (CIO) of the United States Department of Defense (DoD), a position distinct from the ASD and governed by the Clinger-Cohen Act.
The under secretary of defense for intelligence and security or USD(I&S) is a high-ranking civilian position in the Office of the Secretary of Defense (OSD) within the U.S. Department of Defense (DoD) that acts as the principal civilian advisor and deputy to the secretary of defense (SecDef) and deputy secretary of defense (DepSecDef) on matters relating to military intelligence and security. The under secretary is appointed as a civilian by the president and confirmed by the Senate to serve at the pleasure of the president.
The under secretary of defense for personnel and readiness, or USD (P&R) is a high-ranking civilian position in the Office of the Secretary of Defense (OSD) within the United States Department of Defense responsible for advising the secretary and deputy secretary of defense on recruitment, career development, pay and benefits, and oversight of the state of military readiness. The under secretary is appointed from civilian life by the president and confirmed by the Senate to serve at the pleasure of the President.
The United States Department of Defense is an executive branch department of the federal government of the United States charged with coordinating and supervising all agencies and functions of the U.S. government directly related to national security and the United States Armed Forces. As of June 2022, the U.S. Department of Defense is the largest employer in the world, with over 1.34 million active-duty service members, including soldiers, marines, sailors, airmen, and guardians. The Department of Defense also maintains over 778,000 National Guard and reservists, and over 747,000 civilians bringing the total to over 2.87 million employees. Headquartered at the Pentagon in Arlington County, Virginia, just outside Washington, D.C., the Department of Defense's stated mission is to provide "the military forces needed to deter war and ensure our nation's security".
The Under Secretary of Defense for Acquisition and Sustainment, or USD (A&S), is the Principal Staff Assistant (PSA) and advisor to the Secretary of Defense for all matters relating to acquisition and sustainment in the Department of Defense. This includes the DoD Acquisition System; system design and development; production; logistics and distribution; installation maintenance, management, and resilience; military construction; procurement of goods and services; material readiness; maintenance; environment and energy resilience ; utilities; business management modernization; International Armaments Cooperation, Cooperative Acquisition and International Agreements, Promoting exportability of military components to allies and partners; nuclear, chemical and biological defense programs; and nuclear command, control, and communications.
The Under Secretary of Defense (Comptroller)/Chief Financial Officer, abbreviated USD(C)/CFO, is a high level civilian official in the United States Department of Defense. The Under Secretary of Defense (Comptroller) is the principal staff assistant and adviser to both the Secretary of Defense and the Deputy Secretary of Defense for all budgetary and fiscal matters, including the development and execution of the Defense Department's annual budget.
The Assistant Secretary of Defense for Health Affairs (ASD(HA)) is chartered under United States Department of Defense Directive (DoDD) 5136.1 in 1994. This DoDD states that the ASD(HA) is the principal advisor to the U.S. Secretary of Defense on all "DoD health policies, programs and activities." In addition to exercising oversight of all DoD health resources, ASD(HA) serves as director of the Tricare Management Activity.
The Assistant to the Secretary of Defense for Public Affairs, or ATSD (PA), is the principal staff advisor and assistant to the Secretary of Defense and Deputy Secretary of Defense for public information, internal information, community relations, information training, and audiovisual matters in support of Department of Defense activities, leading a worldwide public affairs community of some 3,800 military and civilian personnel. The Assistant to the Secretary follows the Secretary's Principles of Information in providing Defense Department information to the public, the United States Congress and the media.
The Director, Operational Test and Evaluation (DOT&E) is the principal staff assistant and adviser to the US Secretary of Defense on operational and live fire test and evaluation activities involving U.S. Department of Defense weapons systems.
The Weapon Systems Acquisition Reform Act, formally known as the Weapons Acquisition System Reform Through Enhancing Technical Knowledge and Oversight Act of 2009, was an Act of Congress created to reform the way the Pentagon contracts and purchases major weapons systems. It was signed into law on May 22, 2009, by President Barack Obama.
Jamie Michael Morin is a former senior official in the United States Department of Defense. He was a private sector economist and research consultant before earning a Doctorate degree in political science from Yale University. He then served as a professional staff member on the United States Senate Committee on the Budget. Morin was Director of Cost Assessment and Program Evaluation at the Department of Defense. Previously, he was Assistant Secretary of the Air Force, and served concurrently as Acting Under Secretary of the Air Force from 3 July 2012 to 28 April 2013. He joined The Aerospace Corporation in 2017 as executive director of the Center for Space Policy and Strategy and vice president of Defense Systems Operations.
The Assistant Secretary of Defense for Nuclear, Chemical & Biological Defense Programs, or ASD(NCB), is the principal adviser to the Secretary of Defense, Deputy Secretary of Defense and the Under Secretary of Defense for Acquisition and Sustainment on policy and plans for nuclear, chemical, and biological defense programs.
The Director of Administration and Management, or DA&M, is a position within the Office of the Secretary of Defense (OSD) at the Department of Defense. As the principal staff assistant and advisor to the Secretary and Deputy Secretary of Defense concerning organizational and administrative management matters, the DA&M is responsible for: developing and maintaining organizational charters and overseeing assigned programs such as DoD Committee Management, DoD Headquarters Management, the OSD Historical Program, the DoD Freedom of Information Act Program, the DoD Privacy Program, the DoD Civil Liberties program, the OSD Internal Management Control Program, and OSD Information Technology/CIO programs. Additionally, the DA&M performs management and oversight responsibilities for the Pentagon Force Protection Agency and the Washington Headquarters Services, a 1,300 employee, $1.3 billion field activity.
Robert Daigle is an American government official who served as Director of Cost Assessment and Program Evaluation for the United States Department of Defense. Prior to assuming that role, he was a staff member on the United States House Committee on Armed Services. Daigle served as a soldier in the United States Army and was Executive Director of the Military Compensation and Retirement Modernization Commission.
John Euler Whitley is an American government official who served as the acting United States Secretary of the Army from January 20, 2021, to May 28, 2021. He previously serviced as Assistant Secretary of the Army and acting director of cost assessment and program evaluation for the Department of Defense.
