Lance Cpl. Patrick Butner, machinegunner with 2nd Battalion, 4th Marine Regiment, attached to 31st Marine Expeditionary Unit, mans an M240B machine gun position while participating in an exercise to secure Orote Airfield on Naval Base Guam during Exercise Valiant Shield. VS16 is a biennial field exercise with a primary focus on interoperability and integration of joint training among forces. ( Navy photo by Mass Communication Specialist 1st Class John Johnson)

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Size: 4668px × 3107px
Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: 2016, 2nd, 31st, 4th, battalion, expeditionary, marine, regiment, shield, unit, valiant