Four Blue Angels in F/A-18 Hornets fly in formation above Joint Base Andrews, Md., May 8, 2019. The Blue Angels, Air Force Thunderbirds, A-10 Warthog Demonstration Team and Army Golden Knights performed at the 2019 "Legends in Flight" Air & Space Expo alongside a variety of aerial demonstrations. (U.S. Air Force photo by Senior Airman Alyssa D. Van Hook)