Armistice Day commemorates the end of World War I, specifically marking the armistice agreement that took effect on November 11, 1918, at 11 a.m., signaling the cessation of hostilities on the Western Front. This day is observed to honor the sacrifices of military personnel involved in the war and to promote peace and reconciliation. Over time, Armistice Day has evolved into Remembrance Day in many countries, emphasizing the importance of remembering those who lost their lives in all wars, not just World War I.