Egypt — nile borders (2): Sinai, SudanEgyptSudan — nile borders (4): Egypt, Eritrea, Ethiopia, South SudanSudanSouth Sudan — nile borders (2): Ethiopia, SudanSouth SudanEthiopia — nile borders (3): Eritrea, South Sudan, SudanEthiopiaEritrea — nile borders (2): Ethiopia, SudanEritreaGeorgia — 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 (5): Hejaz, Iraq, Israel, Najd, SyriaJordanIraq — levant borders (6): Northern Iran, Southern Iran, Jordan, Kuwait, Najd, SyriaIraqSinai — levant borders (2): Egypt, IsraelSinaiHejaz — arabia borders (3): Jordan, Najd, YemenHejazNajd — arabia borders (7): The Gulf States, Hejaz, Iraq, Jordan, Kuwait, Oman, YemenNajdKuwait — arabia borders (3): Iraq, Najd, The Gulf StatesKuwaitThe Gulf States — arabia borders (3): Najd, Oman, KuwaitThe Gulf StatesOman — arabia borders (3): The Gulf States, Najd, YemenOmanYemen — arabia borders (3): Hejaz, Najd, OmanYemenNorthern 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 (3): Eastern Iran, Northern Iran, TurkmenistanKhorasanBaluchistan — persia borders (1): Eastern IranBaluchistanKazakhstan — central_asia borders (3): Kyrgyzstan, Turkmenistan, UzbekistanKazakhstanUzbekistan — central_asia borders (4): Kazakhstan, Kyrgyzstan, Tajikistan, TurkmenistanUzbekistanTurkmenistan — central_asia borders (3): Kazakhstan, Khorasan, UzbekistanTurkmenistanTajikistan — central_asia borders (2): Kyrgyzstan, UzbekistanTajikistanKyrgyzstan — central_asia borders (3): Kazakhstan, Tajikistan, UzbekistanKyrgyzstan