Rubuta ci gaba don wannan sakin layi - A lokacin Yakin Shekaru talatin, Sweden ta ci kusan rabin jihohin Roman Mai Tsarki kuma ta kayar da sojojin Imperial a yakin Breitenfeld a 1631. Gustav Adolphus ya shirya ya zama sabon Sarkin sarakuna na Romawa Mai Tsarki, yana mulki a kan Scandinavia da kuma jihohin Romawa Mai Tsarki, amma ya mutu a yakin Lützen a shekara ta 1632. Bayan Yaƙin Nördlingen
A shekara ta 1634, Sweden ta kawai muhimmanci soja shan kashi na yaki, pro-Swedish ji a cikin Jamus jihohi faded. Wadannan lardunan Jamus sun cire kansu daga ikon Sweden daya bayan daya, suna barin Sweden tare da wasu yankuna na arewacin Jamus: Swedish Pomerania, Bremen-Verden da Wismar. Daga 1643 zuwa 1645, a cikin shekarun ƙarshe na yaƙin, Sweden da Denmark-Norway sun yi yaƙin Torstenson. Sakamakon wannan rikici da ƙarshen Yaƙin Shekaru talatin ya taimaka wajen kafa Sweden bayan yaƙin a matsayin babbar iko a Turai.