On April 9, 1917, Canadian forces launched a successful attack on Vimy Ridge during World War I, capturing a key strategic position from the Germans. The battle was significant for the Canadian military, as it marked their first major offensive as a unified force and is considered a defining moment in Canadian history. The victory, however, came at a high cost, with over 10,000 casualties. The success of the Canadian Corps at Vimy Ridge was a turning point in the war and boosted morale among the Allies. The battle is commemorated at the Vimy Memorial in France.