Master Sgt. Shannon Thomas (left) and Chief Warrant Officer 4 Audrey Skinner perform first aid on a simulated casualty as Capt. Jean Pharaon (rear) provides security during a situational training exercise at Ramsey Test Track on Rock Island Arsenal, ...

Capt. Lee Berry demonstrates a function check on an M16A2 rifle for evaluator, Sgt. 1st Class Ramon Delafuente, during a situational training exercise at Ramsey Test Track on Rock Island Arsenal, Ill., July 25. The Soldiers - numbering more than 60 -...