U.S. Army Engineer Observer, Coach, and Trainers (OC/Ts), Staff Sgt. Nicholas Isgar, assigned to 3-348th TSBN, 177th Armored Brigade, First Army, speaks about the 471st Engineer Company, 448th Engineer Battalion, 210th Regional Support Group, mission to build a vehicle fighting position during Operational Sentinel Justice (OSJ) at Camp Shelby, Miss., June 12, 2026. Isgar was supported by OC/Ts Staff Sgt. Keith Morris, Capt. Tyree Johnson, and Staff Sgt. Tiree Johnson, all assigned to 2-346th Training Support Battalion, 177th Armored Brigade, First Army. OSJ is a large-scale U.S. Army Reserve training exercise that enhances Soldier and unit readiness, validates capabilities, and improves mission effectiveness through realistic,...
Taken: 06.12.2026 | Video by Staff Sgt. Avery Cunningham
