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 attac
British First World War Q-ship HMS Tamarisk
Q-ships hid naval guns behind moveable or pivoting panels
The Atlantic U-boat campaign of World War I was the prolonged naval conflict between German submarines and the Allied navies in Atlantic waters –the North Sea, the seas around the British Isles, and t
A German postcard depicting the U-boat SM U-20 sinking RMS Lusitania
German U-boats at Kiel, February 1914
The sinking of HMS Pathfinder by SM U-21 on 5 September 1914
German depiction of the sinking of HMS Formidable by SM U-24