international embargo
... that due to an international embargo, flights to Northern Cyprus must take place through Turkey?
... that due to an <b id="mwCDc"><a href="./Embargo_against_Northern_Cyprus" id="mwCDg" rel="mw:WikiLink" title="Embargo against Northern Cyprus">international embargo</a></b>, flights to <a href="./Northern_Cyprus" id="mwCDk" rel="mw:WikiLink" title="Northern Cyprus">Northern Cyprus</a> must take place through <a href="./Turkey" id="mwCDo" rel="mw:WikiLink" title="Turkey">Turkey</a>?