U.S. Marine Corps Sgt. Maj. Michael Johnson, sergeant major for Marine Aircraft Group (MAG) 12, delivers a speech upon appointment to his new command at Marine Corps Air Station Iwakuni, Japan, March 8, 2018. - U.S. Marine Corps Sgt. Maj. Michael Johnson, sergeant major for Marine Aircraft Group (MAG) 12, delivers a speech upon appointment to his new command at Marine Corps Air Station Iwakuni, Japan, March 8, 2018. Johnson is coming from Recruiting Station Atlanta, Georgia, and relinquishing U.S. Marine Corps Sgt. Maj. Miguel A. Ortega, from his duties as the sergeant major at MAG-12. (U.S. Marine Corps photo by Lance Cpl. Seth Rosenberg)