World War II: <a href="https://en.wikipedia.org/wiki/Battle_of_the_Atlantic" id="mw5A" rel="mw:WikiLink" title="Battle of the Atlantic">Battle of the Atlantic</a>: <a about="#mwt72" data-mw='{"parts":[{"template":{"target":{"wt":"HMS","href":"./Template:HMS"},"params":{"1":{"wt":"Venturer"},"2":{"wt":"P68"},"3":{"wt":"6"}},"i":0}}]}' href="https://en.wikipedia.org/wiki/HMS_Venturer_(P68)" id="mw5Q" rel="mw:WikiLink" title="HMS Venturer (P68)" typeof="mw:Transclusion">HMS<span typeof="mw:Entity"> </span><i>Venturer</i></a> <a class="mw-redirect" href="https://en.wikipedia.org/wiki/Action_of_9_February_1945" id="mw5g" rel="mw:WikiLink" title="Action of 9 February 1945">sinks</a> <i id="mw5w"><a class="mw-redirect" href="https://en.wikipedia.org/wiki/U-864" id="mw6A" rel="mw:WikiLink" title="U-864">U-864</a></i> off the coast of <a href="https://en.wikipedia.org/wiki/Fedje" id="mw6Q" rel="mw:WikiLink" title="Fedje">Fedje</a>, Norway, in a rare instance of submarine-to-submarine combat.