All Clear Air Force Capt. Aaron Cho checks the area around his KC-135 Stratotanker aircraft during Exercise Mobility Guardian, while flying over Yakima, Wash., Aug. 3, 2017. Cho is a pilot assigned to the 349th Air Refueling Squadron from McConnell Air Force Base, Kan. Air Force photo by Senior Airman Clayton Cupit SHARE: Download: Full Size (1.54 MB) Tags: Air Force, Northern Command, training, Airmen Credit: Senior Airman Clayton Cupit VIRIN: 170803-F-EV310-0136A.JPG Photo Gallery