Portugal — iberia borders (3): Andalusia, Castile, Galicia
Portugal
Galicia — iberia borders (2): Castile, Portugal
Galicia
Castile — iberia borders (5): Andalusia, Aquitaine, Catalonia, Galicia, Portugal
Castile
Catalonia — iberia borders (3): Aquitaine, Castile, Provence
Catalonia
Andalusia — iberia borders (2): Castile, Portugal
Andalusia
Brittany — gaul borders (2): Aquitaine, Normandy
Brittany
Normandy — gaul borders (4): Alsace, Aquitaine, Brittany, Burgundy
Normandy
Aquitaine — gaul borders (6): Brittany, Burgundy, Castile, Catalonia, Normandy, Provence
Aquitaine
Burgundy — gaul borders (5): Alsace, Aquitaine, Normandy, Piedmont, Provence
Burgundy
Provence — gaul borders (4): Aquitaine, Burgundy, Catalonia, Piedmont
Provence
Alsace — gaul borders (2): Burgundy, Normandy
Alsace
Piedmont — italy borders (4): Burgundy, Lombardy, Provence, Tuscany
Piedmont
Tyrol — italy borders (1): Veneto
Tyrol
Lombardy — italy borders (3): Piedmont, Tuscany, Veneto
Lombardy
Veneto — italy borders (4): Lombardy, Slovenia, Tuscany, Tyrol
Veneto
Tuscany — italy borders (4): Lazio, Lombardy, Piedmont, Veneto
Tuscany
Lazio — italy borders (2): Campania, Tuscany
Lazio
Campania — italy borders (2): Apulia, Lazio
Campania
Apulia — italy borders (2): Campania, Sicily
Apulia
Sicily — italy borders (1): Apulia
Sicily
Slovenia — balkans borders (2): Croatia, Veneto
Slovenia
Croatia — balkans borders (4): Bosnia, Montenegro, Serbia, Slovenia
Croatia
Bosnia — balkans borders (3): Croatia, Montenegro, Serbia
Bosnia
Serbia — balkans borders (4): Bosnia, Croatia, Macedonia, Montenegro
Serbia
Montenegro — balkans borders (4): Albania, Bosnia, Croatia, Serbia
Montenegro
Albania — balkans borders (3): Greece, Macedonia, Montenegro
Albania
Macedonia — balkans borders (3): Albania, Greece, Serbia
Macedonia
Greece — balkans borders (2): Albania, Macedonia
Greece