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U.S. Air Force and Royal Australian Air Force safety experts pose for a group photo during U.S. Pacific Command's annual Asia-Pacific Aviation Safety Subject Matter Expert Exchange (APASS) in Sydney, Australia. APASS creates a forum for discussing a wide range of aviation safety issues, sharing aviation safety concepts, tools, and techniques; and facilitates trust, cooperation and interoperability in an effort to improve aviation safety standards amongst Indo-Asia-Pacific nations.