Tech. Sgt. Jennifer Stem, 374th Aerospace Medicine Squadron optometry flight chief, provides a popsicle treat to Keita Nanko, 374th Operations Support Squadron air traffic specialist, during the initial dose of the Moderna COVID-19 vaccine to local employees at Yokota Air Base, Japan, June 18, 2021. The United States Forces Japan started administering vaccine doses to local employees who wish to be vaccinated by USFJ. (U.S. Air Force photo by Yasuo Osakabe)