CSTX
U.S. Army 1st Lt. Ian Grochowski of Charleston, S.C., assistant intelligence officer for the 207th Regional Support Group, prepares for a possible attack against the unit’s Tactical Operations Center at the Combat Support Tactical Exercise in Fort MCCoy, Wis., Aug. 14, 2019. The 207th Regional Support Group, an Army Reserve unit based in Fort Jackson, S.C., processed and supported more than 4,000 joint service members attending the exercise’s August phase, including Army, Navy, Air Force and Marine personnel. (U.S. Army photo by Sgt. 1st Class Gary A. Witte, 207th Regional Support Group)