In the <a href="https://en.wikipedia.org/wiki/London_Protocol_(1829)" id="mwgQ" rel="mw:WikiLink" title="London Protocol (1829)">London Protocol</a>, the three protecting powers (<a href="https://en.wikipedia.org/wiki/United_Kingdom_of_Great_Britain_and_Ireland" id="mwgg" rel="mw:WikiLink" title="United Kingdom of Great Britain and Ireland">United Kingdom</a>, <a href="https://en.wikipedia.org/wiki/France" id="mwgw" rel="mw:WikiLink" title="France">France</a> and <a href="https://en.wikipedia.org/wiki/Russian_Empire" id="mwhA" rel="mw:WikiLink" title="Russian Empire">Russia</a>) establish the borders of <a href="https://en.wikipedia.org/wiki/First_Hellenic_Republic" id="mwhQ" rel="mw:WikiLink" title="First Hellenic Republic">Greece</a>.