“and the war itself is really cool” that is such a weird statement to read. Maybe “interesting“ would fit, but “cool“? I wonder if any of the people who died in the Ypres/Passchendaele region, or Somme, would call the war “cool“.
The documentary has plenty of shots of tanks entering the battlefield. Probably my favorite part of the whole thing to be honest. It goes from men on horses to seeing tanks roll through.