U.S. Air Force Lt. Col. Robert Heil, 422nd Medical Squadron commander, displays his military patches at the 423rd MDS clinic at RAF Alconbury, England, December 18, 2019. Heil spent 12 years in the Army as a Special Forces medic and now serves as an Air Force medical squadron commander in the 501st Combat Support Wing. (U.S. Air Force photo by Airman 1st Class Jennifer Zima)