Individual Techniques Air Force airmen practice individual movement techniques during Prime Base Engineer Emergency Force training at Joint Base Langley-Eustis, Va., July 19, 2018. Although this month’s training tackled two proficiencies, the 633rd Civil Engineer Squadron regularly changes its attention to ensure its airmen are well-rounded in support of the mission. Air Force photo by Staff Sgt. Areca T. Bell SHARE: Download: Full Size (3.33 MB) Tags: joint base langley-eustis, air force, northcom, northern command, airmen Credit: Staff Sgt. Areca T. Bell VIRIN: 180719-F-IT851-0095A.JPG Photo Gallery