On October 9, 1939 Hitler issued Directive No. 6; a document, that among other things, advanced German plans to attack France later that same fall. Given the code name "Fall Gelb - Case Yellow" the plan Hitler's General Staff had prepared for invading France unimaginatively involved a virtual repetition of the World War One attack into Belgium; an attack to the west into Belgium in the first stage followed by a move to the southwest into France's interior in the second stage.
