Philippine Sea (June 17, 2006) - Australia and the People's Republic of China civilian and military dignitaries observe Exercise Valiant Shield 2006 aboard the Nimitz-class aircraft carrier USS Ronald Reagan (CVN 76). Valiant Shield focuses on integrated joint training among U.S. military forces, enabling real-world proficiency in sustaining joint forces and in detecting, locating, tracking and engaging units at sea, in the air, on land and cyberspace in response to a range of mission areas. U.S. Navy photo by Photographer's Mate 2nd Class Aaron Burden
