It is the anniversary of the signing of the WWI Armistice.
"The Armistice of 11 November 1918 was an armistice during the First World War between the Allies and Germany... It went into effect at 11 a.m. Paris time on 11 November 1918 ("the eleventh hour of the eleventh day of the eleventh month")..."
My father was a veteran of the First World War. As one of the first American soldiers at the front, he served with a machine gun battalion and then was captured and held as a prisoner of war for a year.
November 11, 1918 has a special meaning for me, because at that time my father was near death at the prison camp. Everyone in Germany, especially prisoners of war, were starving due to the Allied Blockade. If signing the armistice had taken another month, my father would probably have died and I would not be here today to write this blog.
Anthem for Doomed Youth (1918)
Original poem line breaks: http://www.warpoetry.co.uk/owen2.html