SM ''U-23'') and combined with the ''U'' for ''Unterseeboot'' would be translated as ''His Majesty's Submarine''., group=Note was one of the 329

U-boat U-boats were naval submarines operated by Germany, particularly in the First and Second World Wars. Although at times they were efficient fleet weapons against enemy naval warships, they were most effectively used in an economic warfare ro ...

s serving in the

Imperial German Navy The Imperial German Navy or the Imperial Navy () was the navy of the German Empire, which existed between 1871 and 1919. It grew out of the small Prussian Navy (from 1867 the North German Federal Navy), which was mainly for coast defence. Wilhel ...

World War I World War I (28 July 1914 11 November 1918), often abbreviated as WWI, was List of wars and anthropogenic disasters by death toll, one of the deadliest global conflicts in history. Belligerents included much of Europe, the Russian Empire, ...

. ''U-23'' was engaged in the

naval warfare Naval warfare is combat in and on the sea, the ocean, or any other battlespace involving a major body of water such as a large lake or wide river. Mankind has fought battles on the sea for more than 3,000 years. Even in the interior of large la ...

and took part in the

First Battle of the Atlantic The Atlantic U-boat campaign of World War I (sometimes called the "First Battle of the Atlantic", in reference to the World War II campaign of that name) was the prolonged naval conflict between German submarines and the Allied navies in Atla ...

. ''U-23'' served on three war patrols, sinking a total of seven ships for . She was baited by the

Q ship Q-ships, also known as Q-boats, decoy vessels, special service ships, or mystery ships, were heavily armed merchant ships with concealed weaponry, designed to lure submarines into making surface attacks. This gave Q-ships the chance to open fi ...

''Princess Louise'' and torpedoed by at , off

Fair Isle Fair Isle (; sco, Fair Isle; non, Friðarey; gd, Fara) is an island in Shetland, in northern Scotland. It lies about halfway between mainland Shetland and Orkney. It is known for its bird observatory and a traditional style of knitting. Th ...

, in

Shetland Shetland, also called the Shetland Islands and formerly Zetland, is a subarctic archipelago in Scotland lying between Orkney, the Faroe Islands and Norway. It is the northernmost region of the United Kingdom. The islands lie about to the n ...

, Scotland. Twenty four men died and 10 survived.

Summary of raiding history

References

Notes

Citations

Bibliography

* {{DEFAULTSORT:U0023 World War I submarines of Germany Maritime incidents in 1915 U-boats sunk in 1915 1912 ships Ships built in Kiel U-boats sunk by British submarines Type U 23 submarines U-boats commissioned in 1913 World War I shipwrecks in the Atlantic Ocean Shipwrecks of Scotland 1915 in Scotland Fair Isle History of Shetland