area
barb
barbed
barbed wire
barbwire
barrier
border
boundary
captive
capture
captured
communism
con
corruption
crime
danger
district
ethnic
fence
free
freedom
frontier
gang
gaol
ghetto
group
human
iron
jail
metal
minority
nobody
people
political
prison
prisoner
protection
rebellion
refugee
religion
right
riot
security
sky
steel
torture
victim
war
wire
zone