Crew members from 109th wing cut a cake in celebration of the unit's 25th year flying missions to Antarctica in support of Operation Deep Freeze at Stratton Air National Guard Base on March 21, 2013. The return of the final "skibird" marks the official end of the unit's support to Operation Deep Freeze for this year and a milestone for the wing. (U.S. Air Force photo/Master Sgt. Willie Gizara)