Today is 78 years since the BF-108 Taifun D-NFAW that was carrying plans for Fall Gelb started the
Mechelen Incident when it crash landed in neutral Belgium.
The Mechelen Incident is typically citied as one of the driving factors that lead Hitler to agree to the revised plan that called for the main German attack through the Ardennes. It’s also citied as part of the reason that the French and British commanders were reinforced of their idea that the Germans would have their main force attack through Belgium as a repeat of the Schlieffen Plan of 1914.