area
barbed
barbwire
berlin
border
boundary
cold war
communism
communist
ddr
east
east germany
eastern bloc
europe
fence
forbidden
freedom
gdr
german
germany
guard
historical
history
life
line
memorial
metal
military
obstacles
opening
prohibited
protected
protective strip
restricted
separation
sign
spring gun
wall
war
watchtower
wende
west
wire
zone