Label Check Air Force Staff Sgt. Danielle Smith checks the label of a COVID-19 test swab sample at Kadena Air Base, Okinawa, Japan, Aug. 31, 2021. According to the Centers for Disease Control and Prevention, nearly all international flights require proof of a negative COVID-19 test within three days of travel. SHARE: Download: Full Size (3.98 MB) Tags: Health, partnerships, Air Force, Indo-Pacific, Coronavirus Credit: Air Force Airman 1st Class Anna Nolte VIRIN: 210831-F-ZJ963-1099A.JPG Photo Gallery