150703-N-IE405-178 SYDNEY, Australia – Australian Prime Minister Tony Abbott, center, tours medical facilities of the U.S. 7th Fleet flagship USS Blue Ridge led by Lt. Cmdr. Omar Saeed, ship’s medical officer, before the start of the Australia-U.S. exercise Talisman Sabre 2015. Talisman Sabre is a biennial combined joint exercise designed to improve Australian and U.S. combat readiness and interoperability, maximize combined training opportunities and demonstrate U.S. resolve to support the security operations of a key ally.