Who is NOT a member of the joint chiefs of staff?

The Chief of Military Reserves is not a member of the Joint Chiefs of Staff. The Joint Chiefs of Staff consist of the highest-ranking officials and leaders of the U.S. military branches, including the Chairman of the Joint Chiefs, the Chief of Staff of the Army, the Chief of Staff of the Air Force, and the chiefs of the Navy and Marine Corps, among others.

While military reserves are an important part of the U.S. defense structure and play a crucial role in overall military readiness, they have separate leadership that operates outside the structure of the Joint Chiefs of Staff. The other positions listed, including the Chairman and the Chiefs of Staff for the Army and Air Force, are directly involved in advising the President and Secretary of Defense on military matters and coordinating military operations across branches, emphasizing their integral role within the Joint Chiefs of Staff.