Answer:
Department of Defense
Explanation:
The Department of defence have a mission which is primarily to provide military forces needed to deter war and protect the security of the united states.
The mission of the Department of Defence has four basic attributes inherent within it;
1. To successfully plan military strategy
2. To aid in maintaining armed forces
3. It is also concerned about operating military bases around the world
4. And it is duely focused on defending the countries from foreign threats
The joint of staff and department of defence constitute the immediate military staff of DoD. The JCS are composed of the senior military officers of certain services.