Service members assigned to the 689th Rapid Port Opening Element board a C-130 during a U.S. Transportation Command Joint Task Force - Port Opening exercise at Langley Air Force Base, Va., Nov. 28, 2012. The 689th RPOE and TRANSCOM conducted the two-day exercise to assess response time and preparation of an airfield in the case of a national disaster. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)