The US Navy Blue Angels and US Air Force Thunderbirds performed a very rare joint flyover above New York City, Trenton, Newark, and Philadelphia on April 28, 2020 to honor health care and essential workers fighting the COVID-19 pandemic. The teams departed from NAS Pensacola in Florida and were refueling mid-flight by four KC-10 Extenders before returning back to Pensacola. Flyovers will continue around the country under the name Operation America Strong.