The United States Armed Forces are the military forces of the United States. The armed forces consists of six service branches: the Army, Marine Corps, Navy, Air Force, Space Force, and Coast Guard. All six armed services are among the eight uniformed services of the United States.
The United States Army Corps of Engineers (USACE) is a direct reporting unit and engineer formation of the United States Army that has three primary mission areas: Engineer Regiment, military construction, and civil works. The day-to-day activities of the three mission areas are administered by a lieutenant general known as the chief of engineers/commanding general. The chief of engineers commands the Engineer Regiment, comprising combat engineer, rescue, construction, dive, and other specialty units, and answers directly to the Chief of Staff of the Army. Combat engineers, sometimes called sappers, form an integral part of the Army's combined arms team and are found in all Army service components: Regular Army, National Guard, and Army Reserve. Their duties are to breach obstacles; construct fighting positions, fixed/floating bridges, and obstacles and defensive positions; place and detonate explosives; conduct route clearance operations; emplace and detect landmines; and fight as provisional infantry when required. For the military construction mission, the chief of engineers is directed and supervised by the Assistant Secretary of the Army for installations, environment, and energy, whom the President appoints and the Senate confirms. Military construction relates to construction on military bases and worldwide installations.
The United States Department of the Army (DA) is one of the three military departments within the Department of Defense of the U.S. The Department of the Army is the federal government agency within which the United States Army (U.S.) is organized, and it is led by the secretary of the Army, who has statutory authority under 10 United States Code § 7013 to conduct its affairs and to prescribe regulations for its government, subject to the limits of the law, and the directions of the secretary of defense and the president.
The United States Naval Criminal Investigative Service (NCIS) is the primary investigative law enforcement agency of the U.S. Department of the Navy. Its primary function is to investigate major criminal activities involving the Navy and Marine Corps, though its broad mandate includes national security, counterintelligence, counterterrorism, cyberwarfare, and the protection of U.S. naval assets worldwide. NCIS is the successor organization to the former Naval Investigative Service (NIS), which was established by the Office of Naval Intelligence after the Second World War.
A military staff or general staff is a group of officers, enlisted and civilian staff who serve the commander of a division or other large military unit in their command and control role through planning, analysis, and information gathering, as well as by relaying, coordinating, and supervising the execution of their plans and orders, especially in case of multiple simultaneous and rapidly changing complex operations. They are organised into functional groups such as administration, logistics, operations, intelligence, training, etc. They provide multi-directional flow of information between a commanding officer, subordinate military units and other stakeholders. A centralised general staff results in tighter top-down control but requires larger staff at headquarters (HQ) and reduces accuracy of orientation of field operations, whereas a decentralised general staff results in enhanced situational focus, personal initiative, speed of localised action, OODA loop, and improved accuracy of orientation.
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 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 Defense Media Activity (DMA) is a United States Department of Defense (DoD) field activity. It provides a broad range of high-quality multimedia products and services to inform, educate, and entertain Department of Defense audiences around the world. The Defense Media Activity is located on Fort Meade, Maryland. DoD field activities are established as DoD components by law, by the President, or by the Secretary of Defense to provide for the performance, on a DoD-wide basis, of a supply or service activity that is common to more than one Military Department when it is determined to be more effective, economical, or efficient to do so. DMA operates as a separate DoD Component under the authority, direction and control of the Assistant to the Secretary of Defense for Public Affairs.
The Flood Control Act of 1928 authorized the United States Army Corps of Engineers to design and construct projects for the control of floods on the Mississippi River and its tributaries as well as the Sacramento River in California. It was sponsored by Senator Wesley L. Jones (R) of Washington and Representative Frank R. Reid (R) of Illinois, in response to the Great Mississippi Flood of 1927.
The United States under secretary of the Army is the second-highest-ranking civilian official of the United States Department of the Army, serving directly under the United States Secretary of the Army. The Secretary and Under Secretary, together with two military officers, the Chief of Staff of the United States Army and the Vice Chief of Staff of the United States Army, constitute the senior leaders of the United States Army.
Jo-Ellen Darcy is an American government official, most recently serving as the Assistant Secretary of the Army from August 11, 2009 to January 20, 2017.
Michael Blumenfeld is an American executive who served as United States Assistant Secretary of the Army from 1979 to 1981.
The Chaplain of the United States Marine Corps (CHMC) is a position always filled by the officers serving as Deputy Chief of Chaplains of the United States Navy as a "dual hatted" billet since 2000. The CHMC oversees religious ministry in the Marine Corps which one Commandant of the Marine Corps defined as "a vital function which enhances the personal, family, and community readiness of our Marines, sailors, and their families. Chaplaincy supports the foundational principle of free exercise of religion and helps to enrich the spiritual, moral and ethical fabric of the military."
Assistant Secretary of the Army (Financial Management and Comptroller) (abbreviated ASA(FM&C)) is a civilian office in the United States Department of the Army.
The Assistant Secretary of the Army for Installations, Energy and Environment is a civilian office within the United States Department of the Army.
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 Assistant Secretary of the Air Force for Financial Management and Comptroller (SAF/FM) is a civilian official in the United States Department of the Air Force.
The U.S. Army Acquisition Support Center (USAASC) is part of the Office of the Assistant Secretary of the Army for Acquisition, Logistics, and Technology. USAASC is headquartered at Fort Belvoir, Va.
The Military Engineer Services (MES) is an inter-service organisation with military and civilian components of its officers and subordinate staff. MES is one of the oldest and largest government defence infrastructure-development agencies in India. Construction work is done with contracts, but maintenance is conducted by departmentally-employed labour (DEL) and contracts. MES is primarily employed in engineering and construction for the Indian Armed Forces, including the Army, Navy, Air Force, the Ordnance Factory Board, and the DRDO. It is also involved in complex projects, including hospitals, airfields, buildings, workshops, roads, runways, hangars, dockyards, airport terminals, sewage treatment plants, solar plants wharves, and other marine structures. MES has been entrusted with the construction of the Indian National War Memorial.
The Assistant Secretary of the Air Force for Space Acquisition and Integration (SAF/SQ) is a civilian position in the United States Department of the Air Force that is appointed by the president of the United States and confirmed by the United States Senate. This position is established under Title 10 US Code Section 9016. The assistant secretary reports to the Secretary of the Air Force.
