Stanley Weintraub wrote a whole book about November 11th, A Stillness Heard Round the World. (You can find cheap, used copies at bookfinder.com) Most folks today have no remembrance that 11 November was Armistice Day, the celebration of the end of bloodshed in WWI.
Why does a peaceful nation bluster and threaten for a few months, and even commence fighting, when in a short time it sighs for peace, and illuminates its streets as soon as peace is proclaimed? The immediate causes differ, but the abiding reason is the same — man is fallen, and belongs to a race of which infallible revelation declares “their feet are swift to shed blood; destruction and misery are in their ways, and the way of peace they have not known.”
[1914-2014: Centennial of the WWI Christmas truce]