150709-N-YD641-170 TIMOR SEA (July 9, 2015) Damage Controlman Fireman Nicholas Olivera, right, from Lodi, Calif., and Damage Controlman 3rd Class Christopher Poitras, from Colorado Springs, Colo., practice firefighting techniques during a simulated fire in the incinerator room aboard the Nimitz-class aircraft carrier USS George Washington (CVN 73) as part of Talisman Sabre 2015 (TS15). 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. Navy photo by Mass Communication Specialist Seaman Matthew Riggs/Released)