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General von Beck takes over command of the newly formed Army Group B on 10th October 1939 at 12.00 hours.
Task of Army Group B is the protection of the German boundary from the mouth of the Ems to the line of demarcation with Army Group C. For this task Army Group B holds the western fortifications; the resistance begins on the border.
The Dutch border between Ems and Rhine is to be observed only.
At the same time, Army Group B has to make all preparations according to special orders, for immediate invasion of Dutch and Belgian territory if the political situation so demands.
The order for the occupation is given by the Army High Command; until then, any border isolation of Dutch or Belgian territory must be avoided most carefully.signed von Brauchitsch
Nazi Conspiracy and Aggression Volume IV
Office of the United States Chief Counsel for Prosecution of Axis Criminality
Washington, DC : United States Government Printing Office, 1946