Thousands of people are gathered at the Canadian National Vimy Memorial in France to mark the 100th anniversary of the battle.
Prime Minister Justin Trudeau and other dignitaries are set to speak at the two-hour event.
Earlier in the day, hundreds of citizens from this French city of Arras turned out in a heartfelt display of thanks to Canada and the thousands of Canadian soldiers who fought and died at nearby Vimy Ridge exactly a century ago.
More than 325 students in grades 9 through 12 with the Niagara Catholic District School Board have made the pilgrimage to mark the commemoration of of the battle.