The Department of Defense generally has many components. The Army, Navy, Air Force, and Marine Corps each have their own bureaus (or organizations) that are responsible for carrying out a range of missions. These bureaus are responsible to many tasks, from testing and procurement to training and testing. These agencies operate both in the domestic and international arenas. The Secretary of Defense oversees the Department of Defense. It is a federally funded entity. The Department of Defense is also responsible for procuring and maintaining technology and equipment in defense. The Department of Defense is also responsible for research and development, military training, and personnel management. Lastly, the Department of Defense is also responsible for coordinating the military's global activities.
The Department of Defense is not the only federal agency. There are also the Office of the Secretary of Defense as well as the Defense Advanced Research Projects Agency. Other agencies include Department of Energy. Department of Defense Accountability Office. Department of Defense inspector General. And the Defense Science Agency. Among the various departments within the Department of Defense are the Office of the Assistant Secretary of Defense for Acquisition, the Office of the Assistant Secretary of Defense for Science and Technology, and the Department of Defense Institute for Security Governance. The Office of the Secretary of Defense, and the Office of the Assistant Secretary of Defense to Strategic Concepts are two other agencies. There are also several organizations tasked with assessing the state of the nation's defenses, determining the feasibility of various strategies, and devising a unified national defense plan. The National Defense Sustainment and Logistics Review is also managed by the Department of Defense.
The Department of Defense also has an independent Advisory Panel on Weapon System Sustainability. This group has been around for some time and has the job of advising the Department of Defense on matters pertaining to weapon system sustainability. This group includes representatives from academia, the defense industry, and the armed forces. This group has conducted a variety of studies to determine the feasibility of different technologies and will recommend the best way forward to meet future requirements.
The Department of Defense maintains a large inventory of its assets. This includes all aircraft in inventory, aircraft and personnel in Army, Navy, Air Force, Air Force, along with the number military personnel in different branches of the service. This inventory is supplemented with a number sub-inventory units, including the Air Force and Joint Staff. The Department of Defense manages this inventory and anyone can access it with a Department of Defense password and user ID. The most important component of this inventory is the force position, or the military’s military readiness. This is critical because it influences the overall effectiveness of a force.
The Department of Defense boasts a long list of accomplishments. One of its most important achievements is the deployment and development of the F-35A fighter jet. This aircraft can also be used to refuel tanker aircraft and defend against missile threats from air bases. The Air Force also has an extensive aircraft procurement plan for fiscal 2020. The plan includes executive lift aircraft and operational support aircraft.