Airman 1st Class Will Gribauskas, 2nd Air Refueling Squadron boom operator, connects the probe to a 6th Airlift Squadron C-17 Globemaster III during a training sortie July 29, 2013, in the skies above the Atlantic. Practice such as this mission helps maintain skills. (U.S. Air Force photo/Airman 1st Class Ryan Throneberry)