Balkan region
I believe the answer is:
bosnia
<span class="explanation-format__ClueExplanation">'<span class="explanation-format__original">balkan region</span>' is the definition.<br/ ><span class="explanation-format__explanation">(I've seen this before)</span><br/ ><br/ >This is the entire clue.<br/ ></span>
(Other definitions for bosnia that I've seen before include "Formerly part of Yugoslavia" , "Part of former Yugoslavia" , "European country, capital Sarajevo" , "Balkan region joined with Herzegovina" , "Southeast European country (shortened form)" .)