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Petty Officer 3rd Class Carina Jaromay, exercise Silver Flag student, hoists a chain onto a Mobile Runway Arresting System, June 20, 2014, on Northwest Field, Guam. Members of a U.S. Navy construction battalion from Naval Base Guam participated in the mock Silver Flag course to give the Andersen instructors experience with conducting the training with actual students before the first official course is held in late 2014. (U.S. Air Force photo by Airman 1st Class Emily A. Bradley/Released)