Most every other documentary on WWII focuses more on the dates, places of battles with some personal accounts. This one however does that and talks about how soldiers dealt with combat as a whole from information gathered at the time by psychiatrists and various studies that were done by the military and others about the various aspects of war.
It does this in such a way that is unique to the genre that sets it way, way apart from the rest. My GF hates war documentaries but liked this set when I eventually wore her down enough to watch an episode. She watched almost all of them after that, and still can't stand other war documentaries.
It talks about the whole aspect of war not just the front lines but the logistics even down to what they ate, rates of pay, how they felt about their superiors or subordinates, it even explains why the fighting men wear their rank on their arms and why officers wear them on top of their shoulders (epaulets) and collars etc... Extremely informative the psychological symptoms and results of first combat through to the eventual breaking down of a soldier no matter how tough at first because of constant exposure to the real possibility of death. To how long a man spent in actual combat a day (under normal type conditions) and so much more. Stuff you won't see in other documentaries other than university lectures aka sleeping pills. Actually the only thing you will get sick of is the dang theme tune as you watch episode back to back. lol