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:
There is also a deputy under secretary of the Army who assists the under secretary in his tasks, including direction of the Army Science Board and the Army Analytics Group, and oversight of the Army's test and evaluation efforts.
The office was created in 1947 as part of the general reorganization of the United States Armed Forces occasioned by the National Security Act of 1947. The office was initially styled "Under Secretary of War" and was created by Department of War General Order 67, dated July 25, 1947. Three weeks later, on August 16, 1947, Department of War Circular 225 redesignated the position as "Under Secretary of the Army".
The following men have held the post: