Several Airmen watch from a distance while Col. Michael Jiru, Air Force Materiel Command program executive officer, speaks about the MH-139 aircraft Dec. 19, 2019, Duke Field, Fla. The MH-139 aircraft is slated to provide vertical airlift support to five different U.S. Air Force major commands. (U.S. Air Force photo by Senior Airman Dylan M. Gentile)