U.S. Air Force Staff Sgt. Travis Riley, left, 633rd Logistics Readiness Squadron air transportation craftsmen, hands tie-down chains to Staff Sgt. Matthew Marsh during a U.S. Transportation Command Joint Task Force - Port Opening exercise at Langley Air Force Base, Va., Nov. 28, 2012. Soldiers and Airmen worked together in a joint mission to support the assessment of an airport opening at an alternate location for a simulated-national disaster. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)

Personnel assigned to the 52nd Airlift Squadron and the 689th Rapid Port Opening Element work together to load a Humvee onto a C-130 during a U.S. Transportation Command Joint Task Force - Port Opening exercise at Langley Air Force Base, Va., Nov. 28, 2012. This is the first time TRANSCOM has conducted a full assessment of an airlift mission to support a simulated disaster or national emergency. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)

A Humvee is prepped to be tied down to a C-130 during a U.S. Transportation Command Joint Task Force - Port Opening exercise at Langley Air Force Base, Va., Nov. 28, 2012. This is the first time the annual exercise has been fully assessed to evaluate the response time, loading and opening of an airport in an alternate location to fit the needs of a humanitarian relief. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)

U.S. Air Force Airman 1st Class Chad Barnette, 52nd Airlift Squadron C-130 load master, ties down a Humvee during a U.S. Transportation Command Joint Task Force - Port Opening exercise at Langley Air Force Base, Va., Nov. 28, 2012. Personnel with the 52nd AS and the 689th Rapid Port Opening Element traveled to Scott Air Force Base, Ill. for a simulated-humanitarian relief assessment. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)

U.S. Air Force Airman 1st Class Chad Barnette, left, 52nd Airlift Squadron C-130 loadmaster, directs U.S. Army Sgt. Ronald Taylor, 689th Rapid Port Opening Element communications non-commissioned officer-in-charge, as he loads a Polaris onto 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 traveled to Scott Air Force Base, Ill. to assess the set-up of an airfield during a simulated-national emergency. (U.S. Air Force photo by Staff Sgt. Ashley Hawkins/Released)

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)