Action of 16 March 1917
The Action of 16 March 1917 was a naval engagement in which the British armed boarding steamer SS Dundee and HMS Achilles, a Warrior-class armoured cruiser, fought the German auxiliary cruiser SMS Leopard, which sank with the loss of all 319 hands and six men of a British boarding party. Leopard was the former British steamer Yarrowdale which had been captured by the German commerce raider Möwe in 1916 and brought back to Germany.