KC-135 supports IAS 2015
U.S. Air Force Capt. Daniel Ouper, an 871st Air Expeditionary Squadron KC-135 Stratotanker pilot, reads over a pre-flight checklist as U.S. Air Force Capt. Luke Reardon, also a KC-135 pilot with the 871st AES, looks on during Icelandic Air Surveillance and Policing at Keflavik International Airport, Iceland, April 21, 2015. The KC-135 provides air refueling capability to U.S. Air Force fighter assets, increasing their range and increasing mission capability. IAS is a recurring NATO mission designed to maintain the security of Icelandic airspace by providing a fighter aircraft presence in the region. (U.S. Air Force photo by 2nd Lt Meredith Mulvihill/Released)