Who is the head of the United States Marine Corps that reports directly to the Secretary of the Navy?

The head of the United States Marine Corps is the Commandant of the Marine Corps. This individual holds the highest rank within the Marine Corps and is responsible for the overall readiness, training, and administration of Marine Corps forces. The Commandant reports directly to the Secretary of the Navy, making this structure important for the effective integration of the Marine Corps within the Department of the Navy. The authority and position of the Commandant reflect the critical role the Marine Corps plays in national defense and military operations.

In contrast, the Chief of Staff typically refers to a senior advisor or executive position in various organizations and does not specifically denote a role within the Marine Corps hierarchy. The Director of Operations is a role that would generally be involved in specific operational aspects rather than overseeing the entire branch. The Secretary of the Marine Corps is not a recognized position; rather, the Secretary of the Navy oversees both the Navy and the Marine Corps. Hence, the role of the Commandant is distinct and specifically defined within the military structure.