Rubuta ci gaba don wannan sakin layi - An kafa Jirgin Ruwa na Dnieper a watan Yunin 1931, amma an rushe shi a watan Yunin 1940, an rarraba jiragen ruwansa zuwa sabon Jirgin Ruwa na Danube (tun, tare da mamayar Soviet na Bessarabia da Arewacin Bukovina
yanzu Soviets suna da iyaka a kan Danube) da kuma Pinsk Flotilla. Ruwa na Danube ya kama sojojin Jamus da na Romania a farkon mamayewar Soviet Union a 1941, kuma an rushe Flotilla na Danube a ranar 21 ga Nuwamba, 1941.