U.S. Air Force Airmen from the 633rd Security Forces Squadron arrests simulated aggressor during exercise Operation Resolute Endeavor II at Joint Base Langley-Eustis, Va., Dec. 5, 2016. The 633rd SFS Airmen confronted aggressors who were using vehicle-borne improvised explosive devices, waterborne infiltration techniques and silent infiltration techniques to gain access to Third Port. (U.S. Air Force photo by Airman 1st Class Derek Seifert)