Answer:
First of all, the German line was invincible and supply routes were short and east to keep the army supplied.
But Paul Warburg (Daddy Warbucks) who was invested in the Federal Reserve Bank and who wrote the 1913 Federal Reserve Bank which sent 20 million to Russia by Trotsky to make the revolution for Lenin, told Kaiser Wilhelm, “The Communists are taking over Germany with a cry for a Republic and if you do not abdicate and escape to neutral Holland for sanctuary, they are going to kill you and your whole family like they did to your cousin, Nikolai Romanov in Russie.” Kaiser Wilhelm took his advice and was so angry at the deception by Warburg, he kept his mouth shut and sawed firewood with his good hand.
Hope this helps