Sergeant P. Dorzhiev, a Russian sniper who killed 181 Germans on the Leningrad front, looking through binoculars, and holding a rifle, sometime in 1942.
That looks like the typical NVA (east german) entrenchment. One could find them all around at the Berlin area during GDR times. During hikes we often found them as we were youngsters. If they would be there today yet they would make good paintball scenarios.