This was a made for TV movie but was a really good movie about a true story of WW1. If you watch the movie you should soon after look into the later life of Major Wittlesey. I have to admit it is more of an American aimed film but still pretty good. Lots of action.
Plot Outline: Fact-based war drama about an American battalion of over 500 men which gets trapped behind enemy lines in the Argonne Forest in October 1918 France during the closing weeks of World War I.
As the First World War draws to a close, American troops penetrate deep into German held French territory, under pressure from French and British allies to advance quickly and smash the last of the German Army in France. “The Lost Battalion” is the true story of a group of 500 American soldiers, attached to the 77th American Division, who were ordered to advance into the Argonne Forest, against heavy German resistance, and hold their position at whatever the cost.
Plot twist: Their flanks were supposed to be covered but they never arrived.