The first Grand Slam (22,000-pound) bomb is dropped from an Avro Lancaster flown by Royal Air Force Squadron Leader C.C. Calder. Two spans of the Bielefeld railway viaduct in Germany are destroyed.
REFORPAC, the large-scale exercise in the Pacific planned for summer 2025, will be on a scale unseen by the Air Force in recent memory: nearly 300 aircraft spread across 25 locations.