<prompt> Qedela umusho olandelayo: Ngemva kokuthathwa kabusha kwezindawo zaseGrisi nguhulumeni wase-Ottoman, imibuso emikhulu ngaleso sikhathi uMbuso WaseBrithani, uMbuso WaseRussia kanye noMbuso WaseFrance yabona ukuhlasela kwamaGrikhi njengethuba lokwehlisa amandla oMbuso Wase-Ottoman futhi ngokuyisisekelo kwandise ithonya labo eMpumalanga yeMedithera. Amandla amakhulu asekela iGrisi ukuze ithole kabusha ukuzimela kwayo futhi ngemva kokunqoba okunqumayo  <response>: empini yaseNavarino Bay kwavunyelwana ngokumisa umlilo eLondon bheka iSivumelwano saseLondon 1827. Ukuzimela kweGrisi ekugcineni kwaqashelwa yiProtocol yaseLondon ka-1828 kanye nokuzimela kwayo ngokuphelele eMbusweni wase-Ottoman yiProtocol yaseLondon ka-1830. 