Dee ihe na-aga n'ihu maka paragraf a - N'ịgbaso iweghachite ókèala ndị Gris site n'Alaeze Ukwu Ottoman, Great Powers nke oge ahụ (Alaeze Ukwu Britain, Alaeze Ukwu Russia na Alaeze France) hụrụ mwakpo ndị Gris dị ka ohere iji mee ka Alaeze Ukwu Ottoman gharazie ịdị ike ma nwekwuo ike ha na Eastern Mediterranean. Ndị Ukwu na-akwado Gris iji nwetaghachi nnwere onwe ya na-esote agha dị oke mkpa na Navarino Bay
e kwekọrịtara nkwụsịtụ agha na London (lee Treaty of London (1827)). E mechara mata nnwere onwe nke Gris site na Protocol London nke 1828 na nnwere onwe ya zuru oke site na Alaeze Ukwu Ottoman site na Protocol nke London nke 1830.