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 secretary of the Army. The secretary and under secretary, together with two military officers, the chief of staff and the vice chief of staff of the Army, constitute the senior leaders of the United States Army.
The following officials report to the under secretary of the Army:
The Department of the Army (DA) is one of the three military departments within the United States Department of Defense. The DA is the federal government agency within which the United States Army (U.S.) is organized. It is led by the secretary of the Army, a civilian official appointed by the president and confirmed by the Senate. The highest-ranking military officer in the department is the chief of staff of the Army, who is also a member of the Joint Chiefs of Staff. Other senior officials of the department are the under secretary of the Army (principal deputy to the secretary) and the vice chief of staff of the Army (principal deputy to the chief of staff.)
The DA is a successor to the Department of War which was originally formed in 1789 as an Executive Department of the United States. The Department of War was split by the National Security Act of 1947 into the Department of the Army and Department of the Air Force on September 18, 1947.
The United States Department of the Army Criminal Investigation Division (CID or DACID), previously known as the United States Army Criminal Investigation Command (USACIDC), is the primary federal law enforcement agency of the United States Department of the Army. Its primary function is to investigate felony crimes and serious violations of military law and the United States Code within the US Army. The division is an independent federal law enforcement agency with investigative autonomy; CID special agents, both military and civilian, report through the CID chain of command to the CID Director, who reports directly to the Under Secretary of the Army and the Secretary of the Army. Unlike their counterparts at OSI and NCIS, Army CID does not have primary counterintelligence responsibilities, as this jurisdiction resides with United States Army Counterintelligence Command (ACI).
USACIDC was established as a United States Army command in 1971 and is headquartered at Marine Corps Base, Quantico, Virginia. Worldwide, the organization has slightly fewer than 3,000 soldiers and civilians, of whom approximately 900 are special agents. The initialism "USACIDC" was used to refer to the Army command itself, while criminal investigation personnel and operations are commonly referred to using the shortened initialism "CID", which has its history in the original Criminal Investigation Division formed during World War I. The name restoration to Criminal Investigation Division became official after 2021 reform.
The Assistant Secretary of the Army (Civil Works), abbreviated ASA(CW), is an officer of the United States Department of the Army responsible for overseeing civil engineering functions of the United States Army. The assistant secretary of the army (civil works) reports to the under secretary of the army, who in turn reports to the secretary of the army
Functions overseen by the assistant secretary of the army (civil works) include the civil works of the United States Army Corps of Engineers; control of the United States National Cemetery and the United States Soldiers' and Airmen's Home National Cemetery; and the foreign non-military works of the Army Corps of Engineers. The assistant secretary of the army (civil works) is the civilian responsible for overseeing the work of the chief of engineers.