It put to sea at Lübeck and crossed the Baltic, entering the River Düna from what is now called the Gulf of Riga.
German naval operations against the Russian-held city of Riga were at a critical stage and Mischke felt that he could not afford to let the E13 pass into the Baltic, where it could threaten the German offensive in the Gulf of Riga.
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She continued to support the Army until the water in the Gulf of Riga threatened to freeze over at which time she retired to the port of Kuivastu to winter over.