Who is the Sergeant Major of the Marine Corps?

The Sergeant Major of the Marine Corps is the senior enlisted advisor to the Commandant of the Marine Corps and holds an important position in the U.S. Marine Corps. As of October 2023, the correct answer is Ronald Green. He has served in this role, providing guidance on a wide array of issues concerning enlisted personnel, ensuring their voices are heard at the highest levels of leadership.

Carlos A. Ruiz, Michael Barrett, and John Canley have all held significant positions within the Marine Corps and contributed to its mission, but none are currently serving as the Sergeant Major of the Marine Corps. Each has a distinguished career in the military, with their own unique accolades and impact, but the position is currently held by Ronald Green, making him the most accurate selection in this context.