United States Secretary of the Army

The secretary of the Army (SA or SECARMY) is a senior civilian official within the United States Department of Defense, with statutory responsibility for all matters relating to the United States Army: manpower, personnel, reserve affairs, installations, environmental issues, weapons systems and equipment acquisition, communications and financial management. The secretary of the Army is nominated by the president of the United States and confirmed by the United States Senate.

Source: Wikipedia — United States Secretary of the Army (CC BY-SA 4.0)