Answer:
The Army Chief of Staff.
Step-by-step explanation:
The Chief of Staff usually reports directly to the Secretary of the Army for army matters and assists in the Secretary's external affairs functions, including presenting and enforcing army policies, plans, and projections. The Chief of Staff of the Army is usually nominated by the President of the country and must be confirmed by the Senate.
The Army Chief of Staff presents and enforces the policies, plans, and projections of the military, while preparing their commands and the military for roles in the future.