In 1944, the headquarters of Heeresgruppe B, commanded by Gerd van Rundstedt and the O.K.W. were both ordered by Hitler to draft a plan of attack for the offensive in the Ardennes. The plan of the O.K.W. was named “Martin”. Eventually, after some adjustments, the plan of von Rundstedt was chosen. The operation was given the name “Wacht am Rhein”.