Sgt. Maj. Jason Hammock participates in a post and relief ceremony with Marine Air Control Squadron 4, Marine Air Control Group 18, 1st Marine Aircraft Wing, on Marine Corps Air Station Futenma, Okinawa, Japan, August 2, 2018. Sgt. Maj. Daniel Heider relieved Sgt. Maj. Hammock as the sergeant major for MACS-4.

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Photo credit: © Barney Low / Alamy / Afripics
License: Licensed
Model Released: No

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