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Britain's Queen Elizabeth II (C) and Britain's Prince Philip, Duke of Edinburgh (L) stand, after the bugler finishes playing at the end of a Service on the Eve of the Centenary of the Battle of the Somme at Westminster Abbey in London on June 30, 2016. Westminster Abbey is holding a Service on the Eve of the Centenary on June 30 2016, and an Overnight Vigil the first time the Abbey has been open all night for a vigil since peace vigils for the Cuban Missile Crisis over fifty years ago. The Abbey service and vigil are part of a programme of centenary events which includes vigils in Scotland, Wales and Northern Ireland, and at Thiepval, Northern France. / AFP / POOL / Niklas HALLE'N (Photo credit should read NIKLAS HALLE'N/AFP via Getty Images)