The Contrails
An Air Force E-4B flies over the Canadian Pacific coast, Wash., April 10, 2014. Air Combat Command is the Air Force single-resource manager for the E-4B, and provides aircrew, maintenance, security and communications support. E-4B operations are directed by the Joint Chiefs of Staff and executed through U.S. Strategic Command. (U.S. Air Force photo by Senior Airman Mary O'Dell)

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Photo by: Senior Airman Mary O'Dell |  VIRIN: 160908-F-RB000-001.JPG