A B-1B Lancer aircraft starts its engine during Red Flag-Alaska 07-1 at Ellsworth Air Force Base, S.D., April 13, 2007. Red Flag-Alaska is a Pacific Air Forces-directed field training exercise for U.S. forces flown under simulated air combat conditions conducted on the Pacific Alaskan Range Complex with air operations flown out of Eielson and Elmendorf Air Force Bases. DoD photo by Airman 1st Class Jonathan Snyder, U.S. Air Force.
