A Royal Australian Air Force space operations officer reviews exercise information at the 613th Air Operations Center at Joint Base Pearl Harbor-Hickam, Hawaii, as part of Exercise Talisman Sabre 15, July 16, 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. Air Force photo by Capt. Raymond Geoffroy/Released)