The wall
Staff Sgt. Nathan Franey, left, Senior Airman Shane Hardin, center, and Staff Sgt. Eric Fullmer, 563d Operations Support squadron, act as oppositional forces, Feb. 22, 2017, at the Playas Training and Research Center, N.M. OPFOR is a role designed to simulate downrange threats and complicate training objectives with the ultimate goal of creating a realistic training environment for units preparing to deploy. Airmen from the 563d OSS fill this role in support of numerous joint exercises each year utilizing aircraft-threat emittors, vehicle-mounted simulation weapons and waves of ground troops. (U.S. Air Force photo by Staff Sgt. Ryan Callaghan)

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Photo by: Staff Sgt. Ryan Callaghan |  VIRIN: 170222-F-NI493-1255.JPG