An Airman from the 36th Logistics Readiness Squadron fuels flight works with a Royal Australian Air Force member to service an F/A-18 Hornet Feb 12. 2013, on the flight line at Andersen Air Force Base, Guam, during Cope North 2013. Cope North is an annual air combat tactics, humanitarian assistance and disaster relief exercise designed to increase the readiness and interoperability of the U.S. Air Force, Japan Air Self-Defense Force and Royal Australian Air Force. (U.S. Air Force photo by Staff Sgt. Alex Montes/Released)