1944-12-01 / European Theater of Operations (ETO) / unresolved
SHAEF Air Staff file 37153 contains messages and memorandums from December 1944 through March 1945 documenting reports of "night phenomena (foofighters)" by crews of the 415th Night Fighter Squadron over the European Theater. Crews described blinking lights that changed colors and flew in formation with their aircraft, reddish flames, red balls of fire, and arrow-like light formations. On 1 March 1945, HQ IX TAC reported that pilots observed an aluminum-colored cylinder-shaped object approximately 12 feet long floating at 9,000 feet, which was attacked, partially deflated, and produced a red flame without smoke.
Blinking lights that changed colors, flew in formation with aircraft, came very close, reported by 415th Night Fighter Squadron crews