The U.S. Air Force Air Demonstration Squadron Thunderbirds move into the diamond formation fly pass Dover Air Force Base’s air traffic control tower during the Thunder Over Dover Open House Aug. 27, 2017. The Thunderbirds performed precision flying maneuvers during the 2017 Thunder Over Dover Open House and Airshow Aug. 26 – 27. (U.S. Air Force photo by Senior Airman Zachary Cacicia)