Two UH-1N helicopters from the 37th Helicopter fly in formation Jan 9, 2014, over Cheyenne, Wyo. The newly-formed 20th Air Force helicopter operations group set up at F.E. Warren Air Force Base Aug. 1, 2014. The group assumes control of the helicopter squadrons across 20th Air Force sometime in 2015 after it ends its provisional status. (Courtesy photo)

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