Kammala jumla mai zuwa: A lokaci guda, duka Poland, a matsayin wani ɓangare na Polish-Lithuanian Commonwealth, da kuma Masarautar Sweden suna da shirye-shirye masu mahimmanci don fadada nasarorin ƙasa da ƙarfafa iko, wanda ya haifar da manyan rikice-rikice da yawa tsakanin ƙasashen biyu, suna ƙalubalantar ikon kowannensu. A mafi girma, da
'Yan Sweden sun mamaye Poland sau ɗaya, wanda aka sani da Ruwan Ruwan Sweden, wanda daga baya ya lalata yawancin Poland bayan mummunar lalacewar da' yan mamayar Sweden suka yi. Rushewar Poland ta kasance ta hanyar mamayewar Sweden ta zalunci.