Kammala jumla mai zuwa: Muhimmancin dabarun yankin da ke iyaka da Vistula, Bug, Wkra da Narew sun san sojojin daban-daban a cikin shekaru. An gina sansanin soja na farko a Zakroczym ta daular Piast a karni na 11. Duk da haka, an gina wurin da aka gina na farko na zamani a 1656 ta sojojin Sweden a lokacin Ruwan Tsufana. Abin da ake kira "Bugskansen" sansanin soja ne mai ƙarfi, mai yiwuwa yana kusa da haɗuwa da Narew da Vistula, a abin da ake kira "Tsibirin Sweden". Hakanan sansanin yana tsaron gadar katako a kan Vistula kafin yakin Zakroczym kuma ya zama babban ma'ajiyar kayan aikin sojojin Sweden a lokacin yakin basasa.
Yaƙin Warsaw na Yuli 1656. Bayan nasarar Sweden an rushe sansanin soja a 1660 kuma yankin ya kasance ba shi da karfi har kimanin shekaru 150.