U.S. Marine Corps Gen. David Berger, the Commandant of the Marine Corps and Sgt. Maj. of the Marine Corps Troy Black, interact with Marines from Marine Rotational Force-Darwin 22, during a tour in Darwin, NT, Australia, April 14, 2022. Gen. Berger’s visit allowed Australian and American service members to showcase how they enhance interoperability. - U.S. Marine Corps Gen. David Berger, the Commandant of the Marine Corps and Sgt. Maj. of the Marine Corps Troy Black, interact with Marines from Marine Rotational Force-Darwin 22, during a tour in Darwin, NT, Australia, April 14, 2022. Gen. Berger’s visit allowed Australian and American service members to showcase how they enhance interoperability.