U.S. Army Soldiers and Australian Soldiers gather for

U.S. Army Soldiers and Australian Soldiers gather for a Combined Arms Rehearsal during exercise Hamel 15 a sub-mission of exercise Talisman Sabre in Shoalwater Bay Training Area, Queensland, Australia on July 12, 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 Spc. Jordan Talbot/Released)