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U-boat Sunk by aircraft Sunk by warship or raider Sunk by mines Total Allied shipping sunk German submarines lost Sep. '39 3297070 153879 0 5051 29537 158930 2 Oct. '39 3576135 134807 0 32058 29490 166865 5 Nov. '39 4408689 51589 0 1722 120958 53311 1 Dec. '39 4466664 80881 2949 22506 82712 106336 1 Jan. '40 4847044 111263 23693 0
Instead the campaign ensured final defeat as the campaign was a contributing factor to the entry of the US in the First World War. [1] In World War II, Karl Dönitz, supreme commander of the Kriegsmarine 's U-boat arm (Befehlshaber der Unterseeboote), was convinced the UK and its convoys could be defeated by new tactics, and tried to focus on ...
U-boat losses were also manageable; German shipyards were producing 20 U-boats per month, while losses for most months prior to Black May were less than half that. What changed in May was that the UBW started to lose; the loss of 43 U-boats (25 per cent of the UBW operational strength) was a big defeat and losses outstripping production became ...
During World War II, about 60% of all U-boats commissioned were lost in action; 28,000 of the 40,000 U-boat crewmen were killed during the war and 8,000 were captured. The remaining U-boats were either surrendered to the Allies or scuttled by their own crews at the end of the war.
The U-boat campaign was thus not able to cut off supplies before the US entered the war in 1917, and in late 1918 the U-boat bases were abandoned in the face of the Allied advance. The tactical successes and failures of the Atlantic U-boat Campaign would later be used as a set of available tactics in World War II in a similar U-boat war against ...
This list of wars by death toll includes all deaths directly or indirectly caused by the deadliest wars in history. These numbers encompass the deaths of military personnel resulting directly from battles or other wartime actions, as well as wartime or war-related civilian deaths, often caused by war-induced epidemics, famines, or genocides.
By 1918, however, the U-boats' successes began to drop. In January 1918, German U-boats sank 103,738 long tons (105,403 t) and the Austrians sank a further 20,020 long tons (20,340 t) while two Pola boats were sunk. [7] Allied losses continued to fall during the year, while U-boat losses mounted.
The U-boat campaign from 1914 to 1918 was the World War I naval campaign fought by German U-boats against the trade routes of the Allies, largely in the seas around the British Isles and in the Mediterranean, as part of a mutual blockade between the German Empire and the United Kingdom.