Two HH-60 Pave Hawks from the 210th Rescue Squadron at Eielson Air Force Base, Alaska, prepare to take off during a combat search and rescue mission at Fort Wainwright, Alaska, for exercise Northern Edge 2006 on Tuesday, June 6, 2006. Northern Edge is a joint training exercise hosted by Alaskan Command and is one of a series of U.S. Pacific Command exercises that prepare joint forces to respond to crises in the Asian Pacific region. (U.S. Air Force photo/Staff Sgt. Joshua Strang)