Hungary — carpathia borders (2): Romania, Western UkraineHungaryPoland — carpathia borders (4): Belarus, Kaliningrad, Lithuania, Western UkrainePolandRomania — carpathia borders (4): Bulgaria, Hungary, Moldova, Western UkraineRomaniaMoldova — carpathia borders (2): Romania, Western UkraineMoldovaBulgaria — carpathia borders (1): RomaniaBulgariaWestern Ukraine — carpathia borders (7): Belarus, Hungary, Moldova, Moscow, Poland, Romania, Eastern UkraineWestern UkraineKaliningrad — baltic borders (2): Lithuania, PolandKaliningradLithuania — baltic borders (4): Belarus, Kaliningrad, Latvia, PolandLithuaniaLatvia — baltic borders (4): Belarus, Estonia, Lithuania, NovgorodLatviaEstonia — baltic borders (2): Latvia, NovgorodEstoniaBelarus — baltic borders (6): Latvia, Lithuania, Moscow, Novgorod, Poland, Western UkraineBelarusKarelia — russia_west borders (5): Moscow, Novgorod, Eastern Urals, Western Urals, Western SiberiaKareliaNovgorod — russia_west borders (5): Belarus, Estonia, Karelia, Latvia, MoscowNovgorodMoscow — russia_west borders (8): Belarus, The Don, Karelia, Novgorod, Eastern Ukraine, Western Ukraine, Western Urals, The VolgaMoscowEastern Ukraine — russia_west borders (3): The Don, Moscow, Western UkraineEastern UkraineThe Don — russia_west borders (4): Kazakhstan, Moscow, Eastern Ukraine, The VolgaThe DonThe Volga — russia_west borders (4): The Don, Kazakhstan, Moscow, Western UralsThe VolgaWestern Urals — russia_west borders (5): Karelia, Kazakhstan, Moscow, Eastern Urals, The VolgaWestern UralsKazakhstan — central_asia borders (9): The Don, Kyrgyzstan, Turkmenistan, Eastern Urals, Western Urals, Uzbekistan, The Volga, Western Siberia, XinjiangKazakhstanUzbekistan — central_asia borders (4): Kazakhstan, Kyrgyzstan, Tajikistan, TurkmenistanUzbekistanTurkmenistan — central_asia borders (2): Kazakhstan, UzbekistanTurkmenistanTajikistan — central_asia borders (3): Kyrgyzstan, Uzbekistan, XinjiangTajikistanKyrgyzstan — central_asia borders (4): Kazakhstan, Tajikistan, Uzbekistan, XinjiangKyrgyzstanEastern Urals — siberia borders (5): Central Siberia, Karelia, Kazakhstan, Western Urals, Western SiberiaEastern UralsWestern Siberia — siberia borders (6): Central Siberia, Karelia, Kazakhstan, Mongolia, Eastern Urals, XinjiangWestern SiberiaCentral Siberia — siberia borders (6): Inner Mongolia, Manchuria, Mongolia, Eastern Urals, Western Siberia, YakutiaCentral SiberiaYakutia — siberia borders (4): Central Siberia, Chukotka, Kamchatka, ManchuriaYakutiaChukotka — siberia borders (2): Kamchatka, YakutiaChukotkaKamchatka — siberia borders (2): Chukotka, YakutiaKamchatkaMongolia — steppe borders (4): Central Siberia, Inner Mongolia, Western Siberia, XinjiangMongoliaManchuria — steppe borders (3): Central Siberia, Inner Mongolia, YakutiaManchuriaInner Mongolia — steppe borders (3): Central Siberia, Manchuria, MongoliaInner MongoliaXinjiang — steppe borders (5): Kazakhstan, Kyrgyzstan, Mongolia, Tajikistan, Western SiberiaXinjiang