The area/district/state is a Republican 'stronghold'.
The rebels retreated to their mountain 'stronghold'.
the last 'stronghold' of the endangered deer
(..) At that point, they will overrun our perimeter. Well, that's not gonna happen! Our only security lies in pre-emptive attack. We will fight terror with terror. Now, the hostiles believe that this mountain stronghold of theirs is protected by their... Their deity. And when we destroy it, (..)2009 Avatar