Kammala jumla mai zuwa: Dukkanin jiragen ruwa guda hudu sun yi aiki tare da babban rundunar jiragen ruwa a lokacin yakin basasa, inda suka kasance suna aiki tare da horarwa da kuma nazarin jiragen ruwa. A lokacin yakin basasar Spain, "Gorizia" ya kwashe 'yan kasar Italiya kuma "Pola" ya shiga cikin masu ba da agaji. Duk jiragen ruwa huɗu sun goyi bayan mamayewar Italiya zuwa Albania a watan Afrilu 1939, jim kaɗan kafin barkewar Yaƙin Duniya na II. Bayan Italiya ta shiga rikici mafi girma a 1940, jiragen ruwa guda hudu sun ga manyan ayyuka a cikin Bahar Rum da sojojin Birtaniya. Jiragen ruwa sun shiga cikin yakin Calabria da
Cape Matapan, kuma a cikin wannan yakin, "Zara", "Pola", da "Fiume" duk sun nutse a cikin wani aiki na dare daya da uku na Birtaniya.