Polish-Swedish War Begins at the Battle of Warsaw
Charles X Gustav's 18,000 Swedes faced 33,000 Polish-Lithuanian troops outside Warsaw on July 28th, 1656—and somehow won. Three days of fighting. The Polish cavalry, supposedly invincible, shattered against Swedish discipline and Brandenburg's 8,500 reinforcements. King John II Casimir fled the field, leaving his capital to occupation. The victory looked total. But it terrified every neighboring power, who then united against Sweden in what became known as "The Deluge." Charles had won Warsaw but guaranteed he'd lose the war.
July 18, 1656
370 years ago
Key Figures & Places
What Else Happened on July 18
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