Poland on the Eve of the Swedish Deluge

Timeline

1. 1641–1647Warsaw · WarsawBetween 1641 and 1647, the Commonwealth Sejm was frequently paralyzed by the liberum veto, and King Władysław IV's reforms were blocked. Pay to Cossack and Tatar border guards was in arrears, resentment accumulated in the eastern frontier, and the national defense system grew increasingly fragile.
2. 1648–1649Zaporizhzhia · ZaporizhzhiaIn 1648, Khmelnytsky led a Cossack uprising, inflicting heavy defeats on Commonwealth forces in battles such as at Zhovti Vody. The 1649 Treaty of Zboriv recognized semi-independent Cossack status, dealing a fatal blow to the Commonwealth's national strength and prestige.
3. 1649–1650Polish-Lithuanian Commonwealth · Polish-Lithuanian CommonwealthFrom 1649 to 1650, the Commonwealth simultaneously faced the Cossack War, conflict with Muscovy, and fiscal bankruptcy, with the army severely in arrears. Swedish King Charles X Gustav observed the Commonwealth's weakness and actively prepared the 1655 invasion; the shadow of the Deluge loomed over the Republic.