The Siege of Lublin occurred on 11 June 1655 when, for the second time that month, Poland-Lithuania's armies recaptured the city of Lublin from the Swedes.
By mid-1655, the Swedes threatened the Polish capital of Warsaw, having captured Berestye Fortress (Brest, Belarus) 114 miles to the east as well as Lublin 95 miles to southeast. The Poles recaptured Lublin in early June before liberating Zbarazh in Galicia. Taking advantage of the Polish armies' preoccupation with the southern front, the Swedish armies moved in from Lithuania to reconquer Lublin. As the Polish armies marched north to retake Minsk, they discovered Lublin's fall and rerouted their course to the city. The Swedes only left 47 troops to defend the city, and they were easily overwhelmed when the Poles scaled the walls with ladders and battled for the ramparts. With Lublin again liberated, the Poles were free to advance on Minsk.