Operation AXIOM: The World War
17 February 1917: H.M.S. Farnborough (Q-5), a British Q-ship—a merchant ship armed with concealed weaponry, intended to lure U-boats into surfacing, & thus to their doom—ambushed & sank the German Unterseeboot S.M. U-83 off the Irish coast; Farnborough's captain Gordon Campbell was awarded the Victoria Cross; the heavily damaged Q-5 was deliberately beached.
Lest we forget.