U.S. Air Force Tech. Sgt. Allen Mason, assigned to Defense Logistics Agency Distribution Sigonella, accepts initial shipment of Moderna COVID-19 vaccine to Naval Air Station (NAS) Sigonella, Jan. 8, 2021. NAS Sigonella’s strategic location enables U.S., allied, and partner nation forces to deploy and respond as required to ensure security and stability in Europe, Africa and Central Command.