Cheering New York shipyard workers celebrate news of the Armistice that brought to a close the war, 1918. Armistice Day is commemorated every year on November 11 to mark the armistice signed between the Allies of WWI and Germany at Compicgne, France, for the cessation of hostilities on the Western Front of WWI, which took effect at eleven o'clock in the morning of the eleventh day of the eleventh month of 1918.