Japan Air Self-Defense Force officer candidate school cadets look into a U.S. Air Force KC-135 Stratotanker boom operator's window during a tour at Kadena Air Base, Japan, June 11, 2015. During the tour, more than 70 JASDF cadets visited Kadena to help build their relationship with U.S. Air Force members. (U.S. Air Force photo by Naoto Anazawa)