The Last Days of the High Seas Fleet

On 21 June 1919 the ships of the German High Seas Fleet - interned at Scapa Flow since the Armistice - began to founder, taking their British custodians completely by surprise. In breach of agreed terms, the fleet dramatically scuttled itself, in a well-planned operation that consigned nearly half a million tons, and 54 of 72 ships, to the bottom of the sheltered anchorage in a gesture of Wagnerian proportions. This much is well-known, but even a century after the 'Grand Scuttle' many questions remain. Was von Reuter, the fleet's commander, acting under orders or was it his own initiative? Why was 21 June chosen? Did the British connive in, or even encourage the action? Could more have been done to save the ships? Was it legally justified? And what were the international ramifications?