Who is the Commandant of the Marine Corps?

The Commandant of the Marine Corps is the highest-ranking officer in the United States Marine Corps and serves as a key advisor to the President and the Secretary of Defense on Marine Corps issues. The current Commandant, General David Berger, has held the position since July 2019, which is why he is the correct answer.

While General Robert Neller was indeed a previous Commandant of the Marine Corps, serving from September 2015 to July 2019, he is no longer in that role. The other two individuals mentioned, General John Dunford and General John Kelly, have held significant military positions but have not served as Commandant of the Marine Corps. Dunford served as the Chairman of the Joint Chiefs of Staff, and Kelly served as both the Secretary of Homeland Security and White House Chief of Staff, rather than in a command role specifically related to the Marine Corps. Understanding the current leadership structure is crucial for those studying military hierarchy, especially within the context of the Marine Corps.