Operation Tyr

Operation Tyr is a fictional proposed plan of [...] Germany during World War II to invade and take over Liechtenstein. The plan was ordered to be drawn up by [...] on the advice of his astrologer.

It originally appeared online in 1999 at 1, but has since found its way into histories of WWII written since 1999. No mention of Operation Tyr exists in the records of the German Army.