A Republic of Korea Air Force KF-16 Fighting Falcon from the 123rd Fighter Squadron, Seosan Air Base, taxis on the flightline as two U.S. Air Force 35th Fighter Squadron F-16 Fighting Falcons prepare to taxi for a sortie at Kunsan Air Base, ROK, during Exercise Buddy Wing 15-4, June 4, 2015. In an effort to enhance U.S. and ROKAF combat capability, Buddy Wing exercises are conducted multiple times throughout the year on the peninsula to sharpen interoperability between the allied forces so that if need be, they are always ready to fight as a combined force. (U.S. Air Force photo by Senior Airman Katrina Heikkinen/Released)