Tuhia he tomokanga mo tenei irava - I hangaia te Dnieper Flotilla i te Pipiri 1931, engari i whakakorehia i te Pipiri 1940, i tohaina ona kaipuke ki te Danube Flotilla hou (mai i te noho a te Soviet o Bessarabia me Northern Bukovina
I tēnei wā he rohe o te Rōpū Soviets ki te Danube) me te Pinsk Flotilla. I tangohia te awa o Danube e nga ope Tiamana me Romanian i te timatanga o te whakaekenga o te Soviet Union i te tau 1941, a, i whakakorehia te Danube Flotilla i te Noema 21, 1941.