| Province | Province Type | Abbreviation |
|---|---|---|
| Adriatic Sea | Water | adr adriatic |
| Aegean Sea | Water | aeg aegean |
| Albania | Land | alb |
| Ankara | Home supply center (Turkey) | ank |
| Apulia | Land | apu |
| Armenia | Land | arm |
| Baltic Sea | Water | bal baltic |
| Barents Sea | Water | bar barents |
| Belgium | Supply center | bel |
| Berlin | Home supply center (Germany) | ber |
| Black Sea | Water | bla black |
| Bohemia | Land | boh |
| Brest | Home supply center (France) | bre |
| Budapest | Home supply center (Austria-Hungary) | bud |
| Bulgaria | Supply center | bul |
| Burgundy | Land | bur |
| Clyde | Land | cly |
| Constantinople | Home supply center (Turkey) | con |
| Denmark | Supply center | den |
| Eastern Mediterranean | Water | eas emed east eastmed ems eme |
| Edinburgh | Home supply center (England) | edi |
| English Channel | Water | eng english channel ech |
| Finland | Land | fin |
| Galicia | Land | gal |
| Gascony | Land | gas |
| Greece | Supply center | gre |
| Gulf of Lyon | Water | lyo gol gulfofl lyon |
| Gulf of Bothnia | Water | bot gob both gulfofb bothnia |
| Helgoland Bight | Water | hel helgoland |
| Holland | Supply center | hol |
| Ionian Sea | Water | ion ionian |
| Ireland (impassable) | Land | ire |
| Irish Sea | Water | iri irish |
| Kiel | Home supply center (Germany) | kie |
| Liverpool | Home supply center (England) | lvp livp lpl |
| Livonia | Land | lvn livo lvo lva |
| London | Home supply center (England) | lon |
| Marseilles | Home supply center (France) | mar mars |
| Mid-Atlantic Ocean | Water | mao midatlantic mid mat |
| Moscow | Home supply center (Russia) | mos |
| Munich | Home supply center (Germany) | mun |
| Naples | Home supply center (Italy) | nap napoli |
| North Atlantic Ocean | Water | nao nat |
| North Africa | Land | naf nora |
| North Sea | Water | nth norsea nts |
| Norway | Supply center | nor nwy norw |
| Norwegian Sea | Water | nwg norwsea nrg norwegian |
| Paris | Home supply center (France) | par |
| Picardy | Land | pic |
| Piedmont | Land | pie piemonte |
| Portugal | Supply center | por |
| Prussia | Land | pru |
| Rome | Home supply center (Italy) | rom roma |
| Ruhr | Land | ruh |
| Rumania | Supply center | rum |
| Serbia | Supply center | ser |
| Sevastopol | Home supply center (Russia) | sev sevastapol |
| Silesia | Land | sil |
| Skagerrak | Water | ska |
| Smyrna | Home supply center (Turkey) | smy |
| Spain | Supply center | spa |
| St Petersburg | Home supply center (Russia) | stp |
| Sweden | Supply center | swe |
| Switzerland (impassable) | Land | swi switz |
| Syria | Land | syr |
| Trieste | Home supply center (Austria-Hungary) | tri |
| Tunis | Supply center | tun tunisia |
| Tuscany | Land | tus |
| Tyrolia | Land | tyr tyl trl |
| Tyrrhenian Sea | Water | tys tyrr tyn tyh |
| Ukraine | Land | ukr |
| Venice | Home supply center (Italy) | ven venizia |
| Vienna | Home supply center (Austria-Hungary) | vie |
| Wales | Land | wal |
| Warsaw | Home supply center (Russia) | war |
| Western Mediterranean | Water | wes wmed west western wms wme |
| Yorkshire | Land | yor york yonkers |
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