Germany responded to the British blockade with a counter-blockade by U-Boats. Any British or Allied ship found in the waters around Britain would be sunk and it would not always be possible to warn crews and passengers of attack
Explanation:
British naval blockade on Germany was considered to be the major move which was detrimental for the victory of allied powers., This Blockade had cut off the Maritime supply of food and war supply to the central powers which included Germany. This Blockade also claimed the lives of German civilians as their economy was mostly relied upon the import of foods and war supplies. It had also trade relations with US which was cut off due to this naval blockade.
Germans responded to this miserable situation caused by the Allied powers by announcing an unrestricted submarine warfare with its U-Boats. It announced that any Britain ship found on the waters towards Britain would be targeted and it would be sunk without any prior warning. hence more than seventy thousand British civilians were killed. But US was determined in ensuring its neutral policy during the war until the pearl harbor attack.
