U-boat campaign | |||||||
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Part of the naval theatre of World War I | |||||||
A German postcard depicting the U-boat SM U-20 sinking RMS Lusitania |
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Belligerents | |||||||
Royal Navy Royal Canadian Navy French Navy Regia Marina United States Navy Imperial Japanese Navy Brazilian Navy Imperial Russian Navy Royal Romanian Navy |
Imperial German Navy Austro-Hungarian Navy Bulgarian Navy |
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Commanders and leaders | |||||||
Lord Fisher Sir Henry Jackson Sir John Jellicoe Sir Rosslyn Wemyss |
Hugo von Pohl Gustav Bachmann Henning von Holtzendorff Reinhard Scheer |
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Strength | |||||||
~500 Royal Navy destroyers[1] ~250 US destroyers[2] Various armed trawlers and smaller vessels Defensively armed merchant ships 366 Q-ships |
351 U-boats | ||||||
Casualties and losses | |||||||
5,000 merchant ships sunk[3] 15,000 merchant sailors killed 104 warships sunk[4] 42 warships damaged 61 Q-ships sunk[5] |
217 U-boats lost to all causes 6,000 sailors killed |
U-boat campaign | |||||||
---|---|---|---|---|---|---|---|
Part of the naval theatre of World War I | |||||||
A German postcard depicting the U-boat SM U-20 sinking RMS Lusitania |
|||||||
|
|||||||
Belligerents | |||||||
Royal Navy Royal Canadian Navy French Navy Regia Marina United States Navy Imperial Japanese Navy Brazilian Navy Imperial Russian Navy Royal Romanian Navy |
Imperial German Navy Austro-Hungarian Navy Bulgarian Navy |
||||||
Commanders and leaders | |||||||
Lord Fisher Sir Henry Jackson Sir John Jellicoe Sir Rosslyn Wemyss |
Hugo von Pohl Gustav Bachmann Henning von Holtzendorff Reinhard Scheer |
||||||
Strength | |||||||
~500 Royal Navy destroyers[1] ~250 US destroyers[2] Various armed trawlers and smaller vessels Defensively armed merchant ships 366 Q-ships |
351 U-boats | ||||||
Casualties and losses | |||||||
5,000 merchant ships sunk[3] 15,000 merchant sailors killed 104 warships sunk[4] 42 warships damaged 61 Q-ships sunk[5] |
217 U-boats lost to all causes 6,000 sailors killed |