The secretary of the army is a civilian official appointed by the president and confirmed by the Senate.By amendments to the National Security Act of 1947 in 1949, the department of the Army was transformed to its present-day status.The department is headed by the secretary of the army, who by statute must be a civilian, appointed by the president with the confirmation by the United States Senate.Only the secretary of defense (and the president) has the authority to approve transfer of forces to and from Combatant Commands by 10 United States Code § 162.The Army Staff is divided into several directorates, each headed by a three-star general; a deputy chief of staff (DCS G–1 (personnel), G–2 (intelligence), G–3 (operations), G–4 (logistics),[9] G-5 (planning), G-6 (network), G-7 (training), G-8 (finance), and G-9 (installations) respectively).
Chart summarizing the organization of the Department of the Army's Headquarters as of 2010.