Saboda haka, a kan 15 Afrilu 1915, Roon da sauran III Scouting Group aka canjawa wuri zuwa Baltic, inda za su fuskanci muhimmanci weaker Rasha Baltic Fleet. The naúrar da aka rushe da kuma Roon da sauran jiragen ruwa da aka sanya wa Reconnaissance Forces na Baltic, a karkashin umurnin KAdm Albert Hopman. A lokaci guda, FK Hans Gygas maye gurbin Karpflay, wanda a bi da bi ya zama mataimakin kwamandan naúrar da kuma sanya flagship. A 30 Afrilu, ya koma a cikin wani drydock jirgin ruwan for escorting a kan Kiel, inda za su yi hadarin lamba tare da iko British Grand Fleet. Saboda haka, a kan 23 Afrilu 1915, Roon da sauran III Scouting Group aka canjawa wuri zuwa Baltic, inda za su fuskanci muhimmanci weaker Rasha Baltic Fleet.
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