Battle of Zhvanets
Part of the Khmelnytsky Uprising
Plan of the Zhvanets Castle in the present-day of the Khmelnytskyi Oblast in Ukraine
Date September — 16 December, 1653 Location Zhvanets, Volhynian Voivodeship, Polish–Lithuanian Commonwealth Result Tactical Cossack–Tatar victory Treaty of Zboriv was renewed
Belligerents
Cossack Hetmanate Crimean Khanate	Polish–Lithuanian Commonwealth
Commanders and leaders
Bohdan Khmelnytsky İslâm III Giray	John II Casimir
Strength
30,000–40,000 Zaporozhian Cossacks 20,000–35,000 Crimean Tatars	40,000–60,000 Polish–Lithuanian infantry and defenders of the castle
Casualties and losses
Light	7,000–10,000 killed and wounded

The Battle of Zhvanets or the siege of Zhvanets (Ukrainian: Битва під Жванцем, Жванецька облога, Polish: Bitwa pod Żwańcem, Oblężenie Żwańca; September — 16 December, 1653) was fought between the Cossack Hetmanate and Crimean Khanate against the Polish–Lithuanian Commonwealth as a part of the Khmelnytsky Uprising. Near the site of the present-day village of Zhvanets in Ukraine, a forces of the Zaporozhian Cossacks and Crimean Tatars under the command of Hetman Bohdan Khmelnytsky and Khan İslâm III Giray defeated and successfully besieged the Polish–Lithuanian Commonwealth’s forces under the command of the Polish King John II Casimir. The siege ended as a tactical Cossack–Tatar victory and the Poles and Lithuanians was agreed to renew the Treaty of Zboriv which was signed in 18 August 1649.

Background

Despite poor quality of Polish soldiers and their officers, as cream of the Polish Army had been murdered in the Batih massacre (June 1652), the spring offensive of 1653 progressed successfully. The situation changed when Khmelnytsky’s Cossacks joined forces with Tatars commanded personally by Islam III Giray. When news of this reached King Jan Kazimierz Waza, he decided to abandon his positions in Bar, Ukraine, and head towards Zhvanets, to await Moldavian and Transilvanian reinforcements.

Polish forces camped at the confluence of the Zhvanchyk and the Dniestr rivers, building a pontoon bridge over the Dniester, to keep in touch with Bucovina. The reinforcements were inadequate: George II Rakoczi sent 2000 soldiers, while Gheorghe Stefan, only 1000.

Siege

Bohdan Khmelnytsky decided not to make a frontal attack of the Polish camp. Instead, he chose a long-lasting siege, which began in late August 1653, and dragged on throughout autumn into December. As time went by and the weather worsened, Polish defenders began to starve, and a number of soldiers fled their positions in search of food. The situation was anxiously observed by Khan Islam III Giray, who did not wish for complete destruction of Polish forces, as this would eventually strengthen the Cossacks, who, despite the temporary alliance, were his traditional enemies. Furthermore, in late autumn news from Moscow came: the Russians wanted to protect Ukraine, and wage war against Poland.

Under the circumstances, on December 16, 1653, Poles and Tatars agreed to an oral truce. Khmelnytsky had to end the siege: his only achievement was that the Poles agreed to renew the Treaty of Zboriv. Polish Army finally left the camp, while Cossacks headed towards Pereyaslav, where the Treaty of Pereyaslav was signed in 1654.

References

• Władysław Andrzej Serczyk: Na płonącej Ukrainie. Dzieje Kozaczyzny 1648-1651. Warszawa: Książka i Wiedza, 1998, p. 328-329. ISBN 83-05-12969-1.
• Maciej Franz: Wojskowość Kozaczyzny Zaporoskiej w XVI-XVII wieku. Geneza i charakter. Toruń: Adam Marszałek, 2004, p. 222. ISBN 83-73-22803-9.