U.S. Air Force Staff Sgt. Anna Murray, 48th Medical Group immunizations technician, draws the COVID-19 vaccine from a vial at Royal Air Force Lakenheath, England, Jan. 6, 2021. Initial vaccines will be limited to healthcare workers, first responders, and other essential personnel to assess the process and will be used to plan an expanded distribution phase, where each service will request and administer the vaccine through a Defense Department wide phased vaccination approach. (U.S. Air Force photo by Senior Airman Madeline Herzog)