(left to right) Belgium's outgoing Prime Minister Elio Di Rupo, Britain's Prime Minister David Cameron, Belgium's Queen Mathilde and King Philippe, The Duke of Cambridge, the Duchess of Cambridge and Prince Harry attend a ceremony at St. Symphorien Military Cemetery in Mons Belgium on August 4, 2014. Dignitaries attended ceremonies to commemorate the 100th anniversary of the outbreak of World War I (WWI). Photo by Francois Lenoir/PA Photos/ABACAPRESS.COM05/08/2014 - Mons - Photo