A US Navy (USN) SEAL Team Member armed with a 5.56mm M16A2 rifle secures the entrance to a building during a Non-Combatant Evacuation Operation (NEO) training exercise conducted during DESERT RESCUE XI. The exercise is the premiere Combat Search And Rescue (CSAR) training exercise involving all branches of the US Military and is conducted at the ranges at Fallon Naval Air Station (NAS), Nevada (NV)