On the 11th day of November 1918, at the 11th minute of the 11th hour of the day, a cease fire was declared on all the active battlefields of eastern France, cease fire which was violated by several Allied units all over the front line. The last known soldier who would have been killed on the battlefields of the First World War would be the German Oberleutnant Erwin Alexander Thomä, officer reservist of the Ulanen-Regiment Nr.19, killed at 12.10 am during an American offensive at Inor. But it's nearly impossible to say who really was the last soldier killed in action of the Great War as France changed the date of death of the soldiers who fell on 11th November to the 10th, as some other armies would also have done, and as German regiments would only report with the grades and names the death of officers and NCOs while soldiers were only reported by numbers.