If your name is Doenitz you will be tried.
Doenitz is charged with waging unrestricted submarine warfare contrary to the Naval Protocol of 1936 to which Germany acceded, and which reaffirmed the rules of submarine warfare laid down in the London Naval Agreement of 1930.
The prosecution has submitted that on 3rd September, 1939, the German U-boat arm began to wage unrestricted submarine warfare upon all merchant ships, whether enemy or neutral, cynically disregarding the Protocol; ad that a calculated effort was made throughout the war to disguise this practice by making hypocritical references to international law and Supposed violations by the Allies.
See also
War Order No. 154
War Order No. 154 was issued end of November or the beginning of December 1939.
and,
Laconia Order