An Avenger missile defense system from the 263rd Army Air Missile Defense Command scans the horizon for threats during Amalgam Dart 2009 near Camp Rilea, Oregon, June 15. Amalgam Dart is a field test of the Department of Defense's ability to rapidly deploy a total air integrated defense system in the U.S. in order to deter, detect and defeat airborne threats. (U.S. Air Force photo by Staff Sgt. Jacob N. Bailey)