69
2,439 ships
2,439 ships
4,837
sink allied supply ships to England
Unterseeboot, known as 'U Boats'
The loss was of allied and neutral ships in 1917
109 ships of 593,864 tons in Atlantic
Allied cargo ships were the Germans primary targets.
During World War II, German submarines (U-boats) sank approximately 2,800 Allied ships, totaling around 14 million gross tons. Italian submarines contributed by sinking around 1,300 vessels, amounting to about 3 million gross tons. Together, these submarines played a significant role in disrupting Allied shipping and maritime operations throughout the war.
During WWII, Allied warships used ASDIC (an early, crude form of Sonar), airplanes (some ships carried recoverable seaplanes), and visual lookouts (binoculars) to spot submarines and direct attacking vessels to the contact.
Ships try to avoid sinking, submarines sink on purpose...
In 1917, approximately 1,500 Allied ships were lost to German submarines, or U-boats, during World War I. This marked a significant increase in submarine warfare, as Germany intensified its unrestricted submarine campaign to disrupt Allied supply lines. The losses had a considerable impact on shipping and contributed to the eventual response by the Allies to improve naval defenses and tactics against submarine threats.