Sgt. 1st Class Steven B. Ybarra, Santa Clarita, Calif., and Sgt. Arthur J. Lynch, Alhambra, Calif., rush to give aid to a Soldier with simulated injuries during a Quick Reaction Force validation exercise. Both Soldiers of Multi-National Task Force-East, 1-144th Maneuver Task Force, were tested in two separate simulated incidents Jan. 13 in Kosovo.