Berlin Wall: Animals
To further guard anyone from crossing the Berlin Wall, the German Democratic Republic (GDR) used guard dogs. These dogs monitored the Death Strip, see here for the formation of the wall. They were depicted as violent and aggressive dogs, designed to kill anyone who attempted to get across to the other side of the wall.
The dogs were kept in horrible conditions.They were tied up to the wall in the freezing cold and kept at near starvation in order to make sure they were always aggressive and would attack any person they saw.