The armistice was signed by the participants is the early hours of 11/11. But instead of calling an immediate halt to the fighting it was agreed to fight until 11 am.
My great uncle died in those hours. We haven't been much of a military family since, but my dad is a WW 2 vet who was young enough and lucky enough to get to Europe after the hardest fighting was over. Still, he rarely talks about that.
Salute to you servicemen, all of you. It is still a dangerous world, and that isn't likely to change.