Kammala wannan jumlar: A wannan watan, Janar Janar, ya zama mafi damuwa game da shirye-shiryen fadadawa na Sarkin Sweden, Charles X, ya yanke shawarar shiga cikin Yakin Arewa na biyu ta hanyar aika da rundunar jiragen ruwa zuwa Tekun Baltic. 'Yan Sweden sun mallaki wannan yanki bayan da Charles ya
ya mamaye Poland kuma ya yi da'awar kursiyin Poland. De Ruyter ya sake shiga jirgin "Tijdverdrijf", ya isa Øresund, inda ya jira Obdam ya isa ranar 8 ga Yuni. Bayan Obdam ya karɓi umarni, De Ruyter da rundunar jiragen ruwa na Dutch sun tashi don sauƙaƙe birnin Danzig da aka kewaye a ranar 27 ga Yuli, wanda suka yi ba tare da zubar da jini ba. An sanya hannu kan zaman lafiya wata daya daga baya Kafin barin Baltic, De Ruyter da sauran jami'an tutar sun sami izinin Frederick III na Denmark. De Ruyter ya ƙaunaci sarki Danish, wanda daga baya ya zama aboki.