150715-N-BX824-021 TIMOR SEA Gunner's Mate 2nd Class Matthew Spano, from Phoenix, Ariz., paints an overhead bridge crane for corrosion control prevention aboard the Ticonderoga-class guided-missile cruiser USS Antietam during Talisman Sabre 2015. TS 15 is a biennial exercise that provides an invaluable opportunity for nearly 30,000 U.S. and Australian Defence 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.