OUISTREHAM, FRANCE - JUNE 06:  (L-R) Canadian Prime Minister Stephen Harper, President of the European Council Herman Van Rompuy, King Philippe of Belgium, King Willem-Alexander of The Netherlands, Polish President Bronislaw Komorowski, U.S. President Barack Obama, Italian President Giorgio Napolitano, President of Slovakia Ivan Gasparovic, King Harald V of Norway , Queen Elizabeth II and  Queen Margrethe II of Denmark attend the International Ceremony at Sword Beach to commemorate the 70th anniversary of the D-Day Invasion on June 6, 2014 in Ouistreham, France. The 70th anniversary of the D-Day landings, which saw 156,000 troops from the allied countries including the United Kingdom and the United States join forces to launch an audacious attack on the beaches of Normandy.  These assaults are credited with the eventual defeat of Nazi Germany.  (Photo by Peter Macdiarmid/Getty Images)