This is not footage from a film about WW1. A field of recent battles in Donbas.

Recently, there were enemy fortifications here, but infantrymen of the ‘58th Motorised Infantry Brigade’ captured them, knocking out the occupants.
This is what this area looks like now – earth dug up by explosions, trees cut by shells and mines, the remains of the bodies of Russian soldiers, no longer needed by the aggressor...
Video by Kostyantyn Liberov