Bad Luck
In WW1, the orders were "Business as usual" until 11.00 a.m on the 11/11/1918.
These poor guys were in the wrong place at the wrong time.
Henry Nicholas John Gunther (June 6, 1895 – November 11, 1918) was an American soldier and likely the last soldier of any of the belligerents to be killed during World War I. He was killed at 10:59 a.m., one minute before the Armistice was to take effect at 11:00 a.m.
Gunther had recently been demoted, and was seeking to regain his rank just before the war ended.
George Edwin Ellison (10 August 1878 – 11 November 1918) of the 5th Royal Irish Lancers was the last British soldier to be killed in action during the First World War. He died at 09:30 a.m (90 minutes before the Armistice came into effect), shot by a sniper while on a patrol in woodland on the outskirts of Mons, Belgium.