This operation resulted from the exchange of diplomatic notes, beginning on 5 October 1918, between the new German government under Prince Max of Baden and President Woodrow Wilson, in which Germany asked the President to mediate an armistice. One of Wilson's preconditions was the cessation of Germany's submarine war. Despite the objections of Admiral Scheer, the Chief of the German Admiralty Staff, the German Government made this concession on 20 October.