area
arrest
barbed
barbwire
border
captive
capture
captured
communism
con
corruption
crime
district
ethnic
fence
free
freedom
frontier
gang
gate
ghetto
group
human
iron
jail
lock
metal
military
minority
people
political
prison
prisoner
protection
rebellion
refugee
religion
rights
riot
security
silhouette
sky
steel
sun
sunset
torture
victim
war
wire
zone