Photo Credit: Staff Sgt. Alexander Burnett, 21st TSC Public Affairs
Sgt. Jason L. Donaldson, a human resources non-commissioned officer assigned to the 21st Theater Sustainment Command's 18th Engineer Brigade, and a native of Tallahassee, Fla., and Croatian Army Sgt. 1st Class Igor Petkovic, a planning non-commissioned offier for the Croatian Combat Training Center, and a native of Sisak, Croatia, review the latest information concerning Operation Immediate Response 13, at the Croatian Digital Simulation Center, Croatia, Aug. 28, 2013. Donaldson and Petkovic both served in the simulated 70th Infantry Division, which was commanded by the Hawaii Army National Guard, during Immediate Response 13.