Actually only in Kronshtadt base on Baltic sea and Sevastopol and Poti harbours on Black sea were those old battleships had spent the entire wartime. Sea war on the east took place mostly in support of ground battles due to limited theaters and lack of axis naval forces arround. As for convoy duties in areas affected by German submarines the most active area was the Arctic on North fro Norway, but the largest Soviet ships there were destroyers of "7", Novik and Town classes as well as submarines.
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