200428-N-TQ088-0397 PHILADELPHIA (April 28, 2020) The U.S. Navy Flight Demonstration Squadron, the Blue Angels, and the U.S. Air Force Air Demonstration Squadron, the Thunderbirds, honor frontline COVID-19 first responders and essential workers with formation flights over New York City, New Jersey and Philadelphia, April 28, 2020. (U.S. Navy photo by Lt. Cmdr. Aaron Hicks/Released)