U.S. Air Force Airmen from the 18th Logistics Readiness Squadron from Kadena Air Base, Japan, partnered with the Australian army during a refueling exercise at the Royal Australian Air Force Base Darwin, July 8, 2015, in Darwin, Australia, during Talisman Sabre 2015. Talisman Sabre is a biennial exercise that provides an invaluable opportunity for nearly 30,000 U.S. and Australian defense forces to conduct operations in a combined, joint and interagency environment that will increase both countries’ ability to plan and execute a full range of operations from combat missions to humanitarian assistance efforts. (U.S. Army photo by Sgt. Steven Peterson/Released)