Egypt — nile borders (2): Sinai, SudanEgyptSudan — nile borders (4): Egypt, Eritrea, Ethiopia, South SudanSudanSouth Sudan — nile borders (4): Ethiopia, Kenya, Sudan, UgandaSouth SudanEthiopia — nile borders (6): Djibouti, Eritrea, Kenya, Somalia, South Sudan, SudanEthiopiaEritrea — nile borders (3): Djibouti, Ethiopia, SudanEritreaDjibouti — horn borders (3): Eritrea, Ethiopia, SomaliaDjiboutiSomalia — horn borders (3): Djibouti, Ethiopia, KenyaSomaliaKenya — horn borders (5): Ethiopia, Somalia, South Sudan, Tanzania, UgandaKenyaUganda — horn borders (4): Kenya, Rwanda, South Sudan, TanzaniaUgandaRwanda — great_lakes borders (3): Burundi, Tanzania, UgandaRwandaBurundi — great_lakes borders (2): Rwanda, TanzaniaBurundiTanzania — great_lakes borders (6): Burundi, Kenya, Malawi, Rwanda, Uganda, ZambiaTanzaniaZambia — great_lakes borders (2): Malawi, TanzaniaZambiaMalawi — great_lakes borders (2): Tanzania, ZambiaMalawiGeorgia — caucasus borders (3): Armenia, Azerbaijan, The CaucasusGeorgiaArmenia — caucasus borders (3): Azerbaijan, Georgia, Northern IranArmeniaAzerbaijan — caucasus borders (4): Armenia, The Caucasus, Georgia, Northern IranAzerbaijanThe Caucasus — caucasus borders (2): Azerbaijan, GeorgiaThe CaucasusSyria — levant borders (4): Iraq, Israel, Jordan, LebanonSyriaLebanon — levant borders (2): Israel, SyriaLebanonIsrael — levant borders (4): Jordan, Lebanon, Sinai, SyriaIsraelJordan — levant borders (3): Iraq, Israel, SyriaJordanIraq — levant borders (4): Northern Iran, Southern Iran, Jordan, SyriaIraqSinai — levant borders (2): Egypt, IsraelSinaiNorthern Iran — persia borders (6): Armenia, Azerbaijan, Eastern Iran, Southern Iran, Iraq, KhorasanNorthern IranSouthern Iran — persia borders (3): Eastern Iran, Northern Iran, IraqSouthern IranEastern Iran — persia borders (4): Baluchistan, Northern Iran, Southern Iran, KhorasanEastern IranKhorasan — persia borders (2): Eastern Iran, Northern IranKhorasanBaluchistan — persia borders (1): Eastern IranBaluchistan