 The national anthem and classic French patriotic songs "La Madelon" and "Chant du départ" were sung a cappella by the French Army Chorus during the pre-parade segment.The 2015 edition, which had 250 less personnel due to domestic and international deployments of the French uniformed services, celebrated the 70th year since the end of the Second World War and the liberation of France from the Axis, as well as France's determination to fight all forms of terrorism.This parade saw the debut appearance of two special forces units of the French National Police and the GIGN from the National Gendarmerie, which had seen action during January's Charlie Hebdo shooting incident as well as cadets of the Heroic Military Academy, Heroic Naval School and the Air Force College from Mexico.