The United States Air Force Air Demonstration Squadron's C-17 for the "Thunderbirds" lands for the upcoming "Legends in Flight" Air & Space Expo at Joint Base Andrews, Md., May 6, 2019. For 63 years, the Thunderbirds have showcased Air Force discipline and precision flying all around the world. (U.S. Air Force photo by Senior Airman Alyssa D. Van Hook)