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U.S. Air Force Maj. Gen. Russell L. Mack, Pacific Air Forces deputy commander, talks with the crew of the Royal Australian Air Force E-7A Wedgetail during a familiarization tour at Joint Base Pearl Harbor-Hickam. The Wedgetail is participating in Sentry Aloha 18-2 as part of the Enhanced Air Cooperation initiative, which is designed to increase the interoperability between the U.S. and Australian air forces.