Whitehall, London (Air Ministry)

SHAEF Air Staff file 37153 compiles Allied aircrew reports of night phenomena, called "foo fighters," submitted through XII Tactical Air Command and First Tactical Air Force between December 1944 and March 1945. Pilots of the 415th Night Fighter Squadron reported lights that blinked, changed colors, and flew formation with their aircraft; on 1 March 1945, IX TAC pilots observed and attacked an aluminum-colored cylinder about 12 feet long floating at 9,000 feet near grid F-5710, producing a red flame without smoke when partially deflated. Air Ministry A.D.I.