An army cadet dressed in the replica uniform of the First World War attends a ceremony marking the 100th anniversary of the Battle of Vimy Ridge, at the Mountain View Cemetery in Vancouver, Canada, April, 9, 2017. Canadian soldiers, veterans and cadets gathered at the Mountain View Cemetery to commemorate the 100th anniversary of the Battle of Vimy Ridge during the First World War on Sunday. (Xinhua/Liang Sen)