U.S. Air Force Staff Sgt. Anthony Salvione, 435th Security Forces Squadron ground combat readiness training center instructor, sorts through supplies before exercise Frozen Defender in Grostenquin, France, Jan. 14, 2020. Frozen Defender tests the squadron’s capabilities in a contested environment under harsh conditions. The 435th SFS Defenders came prepared with cold-weather gear to combat the lower temperatures which allowed them to train longer, and perform night operations. (U.S. Air Force photo by Staff Sgt. Devin Boyer)