Northern Iran — persia borders (3): Eastern Iran, Southern Iran, KhorasanNorthern IranSouthern Iran — persia borders (2): Eastern Iran, Northern IranSouthern IranEastern Iran — persia borders (6): Afghanistan, Baluchistan, Northern Iran, Southern Iran, Khorasan, SindhEastern IranKhorasan — persia borders (4): Afghanistan, Eastern Iran, Northern Iran, TurkmenistanKhorasanBaluchistan — persia borders (3): Afghanistan, Eastern Iran, SindhBaluchistanKazakhstan — central_asia borders (6): Kyrgyzstan, Turkmenistan, Eastern Urals, Uzbekistan, Western Siberia, XinjiangKazakhstanUzbekistan — central_asia borders (5): Afghanistan, Kazakhstan, Kyrgyzstan, Tajikistan, TurkmenistanUzbekistanTurkmenistan — central_asia borders (4): Afghanistan, Kazakhstan, Khorasan, UzbekistanTurkmenistanTajikistan — central_asia borders (4): Afghanistan, Kyrgyzstan, Uzbekistan, XinjiangTajikistanKyrgyzstan — central_asia borders (4): Kazakhstan, Tajikistan, Uzbekistan, XinjiangKyrgyzstanEastern Urals — siberia borders (3): Central Siberia, Kazakhstan, Western SiberiaEastern UralsWestern Siberia — siberia borders (5): Central Siberia, Kazakhstan, Mongolia, Eastern Urals, XinjiangWestern SiberiaCentral Siberia — siberia borders (6): Inner Mongolia, Manchuria, Mongolia, Eastern Urals, Western Siberia, YakutiaCentral SiberiaYakutia — siberia borders (5): Central Siberia, Chukotka, Kamchatka, North Korea, ManchuriaYakutiaChukotka — siberia borders (2): Kamchatka, YakutiaChukotkaKamchatka — siberia borders (3): Chukotka, Yakutia, HokkaidoKamchatkaMongolia — steppe borders (4): Central Siberia, Inner Mongolia, Western Siberia, XinjiangMongoliaManchuria — steppe borders (4): Central Siberia, Inner Mongolia, North Korea, YakutiaManchuriaInner Mongolia — steppe borders (3): Central Siberia, Manchuria, MongoliaInner MongoliaXinjiang — steppe borders (8): Afghanistan, Kashmir, Kazakhstan, Kyrgyzstan, Mongolia, Northern Pakistan, Tajikistan, Western SiberiaXinjiangNorth Korea — korea_japan borders (3): South Korea, Manchuria, YakutiaNorth KoreaSouth Korea — korea_japan borders (2): North Korea, KyushuSouth KoreaHonshu — korea_japan borders (2): Hokkaido, KyushuHonshuHokkaido — korea_japan borders (2): Honshu, KamchatkaHokkaidoKyushu — korea_japan borders (2): Honshu, South KoreaKyushuAfghanistan — hindu_kush borders (9): Baluchistan, Eastern Iran, Khorasan, Northern Pakistan, Sindh, Tajikistan, Turkmenistan, Uzbekistan, XinjiangAfghanistanNorthern Pakistan — hindu_kush borders (5): Afghanistan, Kashmir, Sindh, Punjab, XinjiangNorthern PakistanSindh — hindu_kush borders (4): Afghanistan, Baluchistan, Eastern Iran, Northern PakistanSindhKashmir — hindu_kush borders (3): Northern Pakistan, Punjab, XinjiangKashmirPunjab — hindu_kush borders (2): Kashmir, Northern PakistanPunjab