Mediterranean U-boat campaign of World War I

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Mediterranean U-boat Campaign
Part of the Mediterranean Theatre of World War I
HMS Britannia sinking near Gibraltar on 9 November 1918
Date 1914 – 9 November 1918 Location Mediterranean Sea
Belligerents
United Kingdom  Italy  France	Austria-Hungary  Germany  Ottoman Empire  Bulgaria

The Mediterranean U-boat Campaign in the Mediterranean Sea was fought by Austria-Hungary and German Empire (with some support by the Ottoman Empire) against the Allies during World War I. It was characterised by the ability of the Central Powers to raid with near impunity during the first years of the war, causing substantial shipping losses, until the introduction of the convoy system allowed the Allies to drastically cut their losses from 1917 on.^[1]