Britain's Prince William, Catherine, Duchess of Cambridge, French President Hollande, Queen Mathilde...
(L-R) Britain's Prince William, his wife Catherine, Duchess of Cambridge, French President Francois Hollande, Queen Mathilde of Belgium, King Philippe of Belgium and German President Joachim Gauck, Spain's King Felipe and Prince Guillaume, hereditary Grand-Duke of Luxembourg, attend a ceremony at the Cointe Inter-allied Memorial, commemorating the 100th anniversary of the outbreak of World War I (WWI) in Liege August 4, 2014. REUTERS/Yves Herman (BELGIUM - Tags: ANNIVERSARY CONFLICT SOCIETY ROYALS POLITICS)