WATERLOO, BELGIUM - JUNE 18:  Grand Duke Henri of Luxembourg and Queen Mathilde of Belgium attend the Belgian federal government ceremony to commemorate the bicentenary of the Battle of Waterloo on June 18, 2015 in Waterloo, Belgium. The ceremony is at the start of three days of official events marking the 200th anniversary of the Battle of Waterloo during which around 5000 historical re-enactors from around the world will take part in events culminating in a re-enactment of the allied defeat of Napoleon's army on June 20th. The 1815 battle saw the overthrow of Napoleon Bonaparte and the restoration of Louis XVIII to the French throne.  (Photo by Chesnot/Getty Images)