150715-N-EH855-115 TIMOR SEA Aviation Ordnanceman Airman Tyler Lazor, from Defanice, Penn., center-left, and Aviation Ordnanceman 2nd Class Donald Collins, from Tucson, Ariz., prepare bomb racks for loading on the flight deck of the Nimitz-class aircraft carrier USS George Washington as part of Talisman Sabre 2015. Talisman Sabre is a biennial exercise that provides an invaluable opportunity for nearly 30,000 U.S. and Australian Defence Force personnel 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.