Crew chief Staff Sgt Adam Pattison pulls pre-flight safety pins on an F-15 Eagle during the Red Flag 07-3 exercise Aug. 28 at Nellis Air Force Base, Nev. Servicemembers from all the U.S. military branches, along with coalition forces, are participating in the event. Sergeant Pattison is an Air National Guard member assigned to the 142nd Fighter Wing at Portland, Ore. (U.S. Air Force photo/Tech. Sgt. Bob Sommer)