Smoke Signals Airmen toss smoke grenades during combat survival training near Thetford, England, Jan. 17, 2024. The exercise focused on how to survive and contact recovery personnel after landing in enemy territory. SHARE: Download: Full Size (1.48 MB) Tags: Air Force Credit: Air Force Airman 1st Class Katie Mullikin VIRIN: 240117-F-KM921-1118C.JPG Photo Gallery