U.S. Air Force Staff Sgt. Kristofer Vandermark (far left), Staff Sgt. Titus Poulose (left), Staff Sgt. Michael Jennings (right), and Master Sgt. Chris Farnsworth (far right) of the 263rd Combat Communications Squadron, a detachment of the 145th Airlift Wing, pose for a photo while deployed to Antarctica in support of Operation Deep Freeze (ODF), at McMurdo Station, Antarctica, Dec. 1, 2018. ODF is a military mission in support of the National Science Foundation throughout the continent of Antarctica, to provide air, land, and sea support to McMurdo Station. (Courtesy photo submitted by Civ. Johnny Chiang)