Office of the Secretary of Defense

The Office of the Secretary of Defense (OSD) is a key part of the United States Department of Defense (DoD), responsible for overseeing the nation's military. Led by the Secretary of Defense, this office advises the President on defense policy, manages the military budget, and coordinates across all branches of the armed forces. The OSD ensures that military operations align with national security goals and addresses various issues such as strategy, logistics, and personnel. Essentially, it plays a critical role in maintaining the U.S. military's readiness and effectiveness in protecting national interests.