Final installment from The Fatherland—Germany enforces total U-boat blockade
ON FEBRUARY 1, 1917, THE GERMAN HIGH COMMAND resumed submarine attacks on neutral ships in British waters. Their goal was to so devastate neutral shippers that they would become unwilling to trade with the Allies. Germany hoped that would inflict on Britain the same pain Germany itself had been suffering and force the Allies to come to terms. The Germans knew that this was a risky gamble because it could draw the United States into the war, but they hoped to bring the Allies to their knees before US involvement became significant.
In the map above, the shaded portion shows the extent of the German war zone.



