Egypt — nile borders (2): Sinai, SudanEgyptSudan — nile borders (6): Central African Republic, Chad, Egypt, Eritrea, Ethiopia, South SudanSudanSouth Sudan — nile borders (6): Central African Republic, DR Congo, Ethiopia, Kenya, Sudan, UgandaSouth SudanEthiopia — nile borders (6): Djibouti, Eritrea, Kenya, Somalia, South Sudan, SudanEthiopiaEritrea — nile borders (3): Djibouti, Ethiopia, SudanEritreaMauritania — sahel borders (1): MaliMauritaniaMali — sahel borders (3): Burkina Faso, Mauritania, NigerMaliNiger — sahel borders (3): Burkina Faso, Chad, MaliNigerChad — sahel borders (3): Central African Republic, Niger, SudanChadBurkina Faso — sahel borders (2): Mali, NigerBurkina FasoDjibouti — horn borders (3): Eritrea, Ethiopia, SomaliaDjiboutiSomalia — horn borders (3): Djibouti, Ethiopia, KenyaSomaliaKenya — horn borders (5): Ethiopia, Somalia, South Sudan, Tanzania, UgandaKenyaUganda — horn borders (5): DR Congo, Kenya, Rwanda, South Sudan, TanzaniaUgandaCentral African Republic — congo_basin borders (5): Chad, Congo, DR Congo, South Sudan, SudanCentral African RepublicDR Congo — congo_basin borders (9): Angola, Burundi, Central African Republic, Congo, Rwanda, South Sudan, Tanzania, Uganda, ZambiaDR CongoCongo — congo_basin borders (4): Angola, Central African Republic, DR Congo, GabonCongoGabon — congo_basin borders (2): Congo, Equatorial GuineaGabonEquatorial Guinea — congo_basin borders (1): GabonEquatorial GuineaAngola — congo_basin borders (3): Congo, DR Congo, ZambiaAngolaRwanda — great_lakes borders (4): Burundi, DR Congo, Tanzania, UgandaRwandaBurundi — great_lakes borders (3): DR Congo, Rwanda, TanzaniaBurundiTanzania — great_lakes borders (7): Burundi, DR Congo, Kenya, Malawi, Rwanda, Uganda, ZambiaTanzaniaZambia — great_lakes borders (4): Angola, DR Congo, Malawi, TanzaniaZambiaMalawi — great_lakes borders (2): Tanzania, ZambiaMalawiPiedmont — italy borders (2): Lombardy, TuscanyPiedmontTyrol — italy borders (1): VenetoTyrolLombardy — italy borders (3): Piedmont, Tuscany, VenetoLombardyVeneto — italy borders (4): Lombardy, Slovenia, Tuscany, TyrolVenetoTuscany — italy borders (4): Lazio, Lombardy, Piedmont, VenetoTuscanyLazio — italy borders (2): Campania, TuscanyLazioCampania — italy borders (2): Apulia, LazioCampaniaApulia — italy borders (2): Campania, SicilyApuliaSicily — italy borders (1): ApuliaSicilySlovenia — balkans borders (3): Croatia, Hungary, VenetoSloveniaCroatia — balkans borders (5): Bosnia, Hungary, Montenegro, Serbia, SloveniaCroatiaBosnia — balkans borders (3): Croatia, Montenegro, SerbiaBosniaSerbia — balkans borders (7): Bosnia, Bulgaria, Croatia, Hungary, Macedonia, Montenegro, RomaniaSerbiaMontenegro — balkans borders (4): Albania, Bosnia, Croatia, SerbiaMontenegroAlbania — balkans borders (3): Greece, Macedonia, MontenegroAlbaniaMacedonia — balkans borders (4): Albania, Bulgaria, Greece, SerbiaMacedoniaGreece — balkans borders (4): Albania, Bulgaria, Macedonia, ThraceGreeceHungary — carpathia borders (5): Croatia, Romania, Serbia, Slovenia, Western UkraineHungaryPoland — carpathia borders (1): Western UkrainePolandRomania — carpathia borders (5): Bulgaria, Hungary, Moldova, Serbia, Western UkraineRomaniaMoldova — carpathia borders (2): Romania, Western UkraineMoldovaBulgaria — carpathia borders (5): Greece, Macedonia, Romania, Serbia, ThraceBulgariaWestern Ukraine — carpathia borders (4): Hungary, Moldova, Poland, RomaniaWestern UkraineThrace — anatolia borders (3): Western Anatolia, Bulgaria, GreeceThraceWestern Anatolia — anatolia borders (2): Central Anatolia, ThraceWestern AnatoliaCentral Anatolia — anatolia borders (4): Eastern Anatolia, Western Anatolia, Syria, CyprusCentral AnatoliaEastern Anatolia — anatolia borders (3): Central Anatolia, Iraq, SyriaEastern AnatoliaCyprus — anatolia borders (2): Central Anatolia, SyriaCyprusSyria — levant borders (7): Central Anatolia, Eastern Anatolia, Iraq, Israel, Jordan, Lebanon, CyprusSyriaLebanon — levant borders (2): Israel, SyriaLebanonIsrael — levant borders (4): Jordan, Lebanon, Sinai, SyriaIsraelJordan — levant borders (5): Hejaz, Iraq, Israel, Najd, SyriaJordanIraq — levant borders (5): Eastern Anatolia, 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, OmanYemen