A poppy memorial for Leading Seaman Elias Dymock who died on HMS Vanguard, is seen on display at the Lyness museum on the island of Hoy in the Orkney Islands, Scotland May 6, 2014. On July 9, 1917, an accidental explosion destroyed HMS Vanguard, killing over 800 men. During both World Wars, Scapa Flow was an important British naval base, and the site of significant loss of life. Following the end of World War One, 74 German warships were interned there, and on June 21, 1919 most were deliberately sunk, or scuttled, at the orders of German Rear Admiral Ludwig Von Reuter, who mistakenly thought that the Armistice had broken down and wanted to prevent the British from using the ships. Now Scapa Flow is a popular site for divers, who explore the few wrecks that still remain at the bottom. The year 2014 marks the 100th anniversary of the start of the First World War. Picture taken May 6, 2014. REUTERS/Nigel Roddis (BRITAIN - Tags: CONFLICT ANNIVERSARY ENVIRONMENT SOCIETY MARITIME)

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