Kammala jumla mai zuwa: Bayan mamayewar Sweden ta Poland a 1655 a lokacin Yaƙin Arewa na Biyu, Czerniecki ya fara aikin soja a ƙarƙashin umurnin Jan "Sobiepan" Zamoyski. Ya shiga cikin yaƙe-yaƙe na Gołąb da
Warsaw a shekara ta 1656. Bayan yaƙin da Sweden, ya ci gaba da aikin soja yana yaƙi a yakin Chudnov da sojojin Muscovite a 1660 da kuma yakin Brayiliv da Tatars da Cossacks na Crimea (Polish <unk>Cossack <unk> Tatar War) a 1666.