Mezue ahịrịokwu na-esonụ: Charles nke Iri nke Sweden ejiriwo mmeri dị ịtụnanya mechie agha mbụ ya na Denmark site n'inwe ihe ịga nke ọma na njem obi ike gafere Belts. A manyere Denmark-Norway na udo dị nro na nkwekọrịta nke Roskilde nke Denmark ga-enyefe Scania, Halland na Blekinge na Scandinavian Peninsula na agwaetiti Bornholm, na Norway tụfuru ógbè Båhuslen na Trøndelag. Mmeri ahụ ha meriri n'egbughị oge tụrụ ndị Europe n'anya, Charles jikwa mpako kwusaa ihe ndị ọ rụzuru. Otú ọ dị, udo ahụ kpatara nsogbu ndị ọhụrụ. N'akwụkwọ nkwekọrịta udo nke Roskilde, e nyere Denmark iwu inye ndị agha Sweden ihe oriri ruo na May 1658, ma n'oge na-adịghị anya mgbe nke ahụ gasịrị, ọ ga-adị mkpa ịkwaga ndị agha ahụ. Eze Sweden maara na ndị agha agaghị enwe ike inweta ihe oriri na Sweden ruo ogologo oge, na-agbasa ya adịghị mma na ndị Poland na-achọ ịbọ ọbọ
mwakpo Poland-Lithuania mere n'afọ 1655. Sweden enweghị ndị iro ịwakpo: a tụlere mkpọsa na Livonia na Estonia, mana a jụrụ ha n'ihi nsogbu ọkọnọ. Eze Sweden kwusiri ike na ebumnuche ya bụ ịwakpo Royal Prussia, mana ọ chọkwara ịta Frederick William nke Brandenburg-Prussia ahụhụ. Otú ọ dị, ọtụtụ ndị iro nọ na kọntinent Europe, n'etiti ha Poland na onye iro Dutch ga-eme ka nke a bụrụ ihe siri ike. Mwakpo ọhụrụ a ga-awakpo Prussia ga-enwetakwa obere nkwado mba ụwa, ebe France na-arịọ ugbua maka udo. Ihe ngwọta ndị Sweden tụrụ n'anya nye nsogbu a ga-abụ ịlaghachi Denmark iji gbalịa ịrụcha ọrụ ahụ.