US Air Force (USAF) AIRMAN First Class (A1C) Natasha Terry, left and A1C Daniel Cook, right, simulated enemy combatants, are handcuffed by A1C Michael Dugan, a patrolman with the 31st Security Forces Squadron (SFS), dressed in Mission-Oriented Protective Postures level 4 (MOPP 4) gear during the local Salty Nation exercise at Aviano Air Base (AB), Italy