Though set in France, the film was shot largely on location in Bulgaria.
Based on a 2010 short of the same name
The squad mentioned how they liberated Paris, but it was the French 2nd Armored Division that took the town in August 1944 and not the US army.
At 1h 04' 17" "An Occurrence at Owl Creek" is mentioned. it is a short story by Ambrose Bierce during the Civil War.