100721-N-4281P-169 PACIFIC OCEAN (July 21, 2010) Flight Sgt. Shane Forrest, left, and Sgt. Adam Priestley check sonobouys aboard an AP-3C Orion aircraft during a Rim of the Pacific (RIMPAC) 2010 anti-submarine warfare exercise. Forrest and Priestly are assigned to the Royal Australian Air Force Number 11 Squadron. RIMPAC is a biennial, multinational exercise designed to strengthen regional partnerships and improve multinational interoperability. (U.S. Navy photo by Mass Communication Specialist 1st Class Woody Paschall/Released)