LtHunter started a very good topic here.
I found a nice home made video of a US WW2 vintage vehicles with infantry gathering done a few years ago or so. Nice to see Stuarts, Half-Track and Jeeps in modern optics.
Sound could be better. https://youtu.be/uOHyQjderV4
This channel has a few good sections for D-Day and onward historical explanationing.
In one of these it is well explained as to why things go from relative easy to hard along the way on The Road to Victory.
That’s a bit rough with that channel. I simply like how they present mankind’s worst moments in a way that it is not to cruel to a younger audience
Guess those last vids do not help to much in game development but maybe to get a broader picture of things.