(from left to right) Sergeant Bennamiah Craig, Pvt. Joseph Stevens and Sgt. 1st Class Bryan Kinnaman, all assigned to 501st Sustainment Brigade, look over operations happening during Exercise Key Resolve 2011 at Camp Carroll, South Korea Feb. 28, 2011. The exercise, which is designed to strengthen South Korea and the United States' ability to deter aggression, begins following a year of heightened tensions on the Korean peninsula. The computer-simulated exercise is called Key Resolve.