For clarity, here are the details on the current supply-center ownership:
Austria: None.
England: Belgium, Brest, Denmark, Edinburgh, Holland, Kiel, Liverpool, London, Norway, Paris, St. Petersburg, Sweden (12 total).
France: None.
Germany: None.
Italy: Marseilles, Munich, Naples, Portugal, Rome, Spain, Trieste, Tunis, Venice (9 total).
Russia: Berlin, Budapest, Moscow, Sevastopol, Warsaw (5 total)
Turkey: Ankara, Bulgaria, Constantinople, Greece, Rumania, Serbia, Smyrna, Vienna (8 total).