'Rules of Prize Warfare' defines a set of rules for taking
prizes—
vessels captured during
war—that were originally laid down in the days of
sailing ships. Some of the rules state that: passenger ships may not be sunk; crews of merchant ships must be placed in safety before their ships may be sunk (life boats are not considered a place of safety unless close to land); only warships may be sunk without warning.
All sides signed treaties subscribing to Rules of Prize Warfare before
World War I and they were in effect during
World War II but all sides ignored them in both wars.
In 1912, British Admiral
Sir John "Jackie" Fisher, by then a retired
First Sea Lord, presented a paper to the
Cabinet. He developed the argument that submarines would find adherence to Prize Rules impossible, for practical reasons: a submarine could not capture a merchant ship, for it would have no spare manpower to deliver the prize to a neutral port, neither could it take survivors or prisoners, for lack of space. "''...there is nothing a submarine can do except sink her capture.''" If a merchant ship were armed, as was permitted by a conference in London in 1912, then a submarine was under more pressure to destroy a ship. He asked: "''What if the Germans were to use submarines against commerce without restriction?''"
This last comment was thought to be unsupportable.
Winston Churchill, then
First Lord of the Admiralty and political head of the Navy, supported by senior naval opinion, said it was inconceivable that "''...this would ever be done by a civilised power.''". It was Fisher who was proved correct.
The treaties are still in effect today.
See also
★
Unrestricted submarine warfare
References
Battle of the Atlantic, , Bernard, Ireland, Pen & Sword Books, , ISBN 1591140323