Be it ordained [ordered] by the United States in Congress assembled , that the powers and duty of the Secretary at War shall be as follows __ To examine into the present state of the war department, the __ present state of the troops, ordnance [explosives], arms, ammunition , clothing, and supplies of the troops of these States , and report the same to Congress. According to this passage, what is the main duty of the Secretary at War? to stay informed about the military and its supplies to command the US Army in battle if the president is unable to to fight any enemy Congress chooses to examine the relationship of the United States to other countries