Kammala jumla mai zuwa: Neman rinjaye a Gabashin Turai, Commonwealth ya yi yaƙe-yaƙe da Rasha tsakanin 1605 da 1618 a cikin lokacin tashin hankali na Rasha; ana kiran jerin rikice-rikicen da ake kira Yakin Poland da Muscovite ko "Dymitriads". Effortoƙarin ya haifar da faɗaɗa yankuna na gabas na Polish-Lithuanian Commonwealth, amma ba a cimma burin karɓar kursiyin Rasha don daular mulkin Poland ba. Sweden ta nemi rinjaye a cikin Baltic a lokacin yaƙe-yaƙe na Poland da Sweden na 1617-1629, kuma Daular Ottoman ta matsa daga kudu a cikin Yaƙe-yaƙe a Cecora a 1620 da Khotyn a 1621. Bunkasa aikin gona da manufofin serfdom a cikin Yaren mutanen Poland Ukraine ya haifar da jerin tsokanar Cossack. An haɗa shi da Masarautar Habsburg, Commonwealth ba ta shiga kai tsaye cikin Yaƙin Shekaru talatin ba. Władysław IV mulkin ya kasance mafi yawan zaman lafiya, tare da mamayewar Rasha a cikin nau'i na
Yaƙin Smolensk na 1632<unk>1634 ya yi nasara. An sake kafa tsarin Ikklisiyar Orthodox, wanda aka dakatar da shi a Poland bayan Union of Brest, a shekara ta 1635.