Machine-gun towers and barbwire on top of the walls.
There was also tripwires that let off signal flares and were placed in different places so the flare would show the progress of the escapee.
There was also land mines in the late 60's and automatic movement guns.
They also smoothed the ground out regularly to see fresh footprints.
The East German Army Engineering Command built the Berlin Wall, and also the fortifications along the inter-German border.
because the wall was in the city Berlin
The fall of the Berlin Wall
Berlin was the city divided by the Berlin Wall.
Berlin Wall
They called the Berlin Wall "The Wall of Shame."
The Berlin wall
The Berlin Wall was built in Germany in August of 1961. The Berlin Wall was built to separate East Germany and East Berlin from West Berlin. The Berlin Wall was destroyed in 1990 which allowed for unification of West and East Berlin.
The Berlin Wall surrounded West Berlin. Therefore... Inside the Berlin Wall: West Berlin Outside the Berlin Wall: The two closest cities were Potsdam to the west, and East Berlin to the east.
The fall of the Berlin wall -APEX
The Berlin Wall was ripped down in the 1980's.Technically, the Berlin Wall was illegal.
Berlin and the wall was called "The Berlin Wall"