On the night of November 23, 1944, a crew from the 415th Night Fighter Squadron was patrolling over the Rhine, about 20 miles north of Strasbourg. Intelligence officer Fred Ringwald noticed eight to ten balls of red fire moving very fast to the west. The pilot, Edward Schlueter, turned toward them, and they disappeared.
Radar observer Donald Meiers named them "foo fighters," after a line in the comic strip Smokey Stover. In an Associated Press story on New Year's Day 1945, he described three kinds: red balls off the wingtips, a vertical row of three, and a cluster of about fifteen flickering lights in the distance. One, he said, followed him 20 miles down the Rhine Valley and turned when he turned.
Ringwald later sent a report listing 14 incidents from December 1944 into January 1945 to XII Tactical Air Command, which asked Allied headquarters for help.