Russian President Vladimir Putin (L) walks with French President Francois Hollande as U.S. President Barack Obama walks with Britain's Queen Elizabeth after a group photo for the 70th anniversary of the D-Day landings in Benouville June 6, 2014. World leaders and veterans paid tribute on the 70th anniversary of the World War Two D-Day landings to soldiers who fell in the liberation of Europe from Nazi German rule, as host France sought to use the event to achieve a thaw in the Ukraine crisis. REUTERS/Kevin Lamarque (FRANCE - Tags: POLITICS ANNIVERSARY CONFLICT ROYALS)