A Navy friendly forces member, armed with a M-4 carbine, stands on top of a roof for a better view to engage on simulated enemy forces moving in. This was during a Non-Combatant Evacuation scenario during exercise DESERT RESCUE IX. Desert Rescue is the premiere Search And Rescue (SAR) training exercise involving Navy, Army, Air Force, and Marine personnel. It is conducted at the ranges of Fallon Naval Air Station, Nevada