Members of the Dutch cavalry are exposed to smoke as they undergo stress tests along the beach front in Scheveningen on September19, 2016. The horses and riders are tested with gunfire, music and smoke as they train for the upcoming Prinsjesdag parade in The Hague in which the King and Queen will ride in their Golden Carriage to the Hall of Knights and give a speech from the throne setting out the main features of government policy for the coming parliamentary session. / AFP PHOTO / ANP / Netherlands OUT/AFP/Getty Images