Osan test their ATSO during Beverly Herd 16-2
Senior Airman Samantha Erasmus, 51st Security Force Squadron heavy gunner, refuels a Humvee during Exercise Beverly Herd 16-2 on Osan Air Base, Republic of Korea, Aug. 26, 2016. Erasmus and other security forces Airmen defend the base by actively patrolling for opposition forces during the exercise. (U.S. Air Force photo by Staff Sgt. Jonathan Steffen)

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Photo by: Staff Sgt. Jonathan Steffen |  VIRIN: 160825-F-UI176-066.JPG