Airmen 1st Class John Contreras, (left), and Marlon Alcampor, 51st Security Forces Squadron, watch for opposing forces during readiness exercise Vigilant Ace 16 on Osan Air Base, Republic of Korea, Nov. 4, 2015. The simulated scenarios prepare defenders for real-world contingencies. Vigilant Ace 16 is a peninsula-wide exercise with more than 16,000 participants including more than 1,000 augmentees. ( Air Force photo/Senior Airman Kristin High)

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Photo credit: © AB Forces News Collection / Alamy / Afripics
License: Licensed
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Keywords: 35th, 51st, air, airman, exercise, force, forces, korea, opforces, pacaf, pacom, security, sfs, south, teamwork