Tensions between Poland–Lithuania and the Ottoman Empire At the end of the 16th century and the beginning of the 17th century, the
magnates of the
Polish–Lithuanian Commonwealth intervened in the affairs of
Moldavia, a vassal state of the
Ottoman Empire since its conquest by
Mehmed II in the 15th century. Additionally, the Ottomans were aggravated by the constant raids into their territories by Ukrainian
Cossacks, then nominal subjects of the Commonwealth. In the meantime, the
Thirty Years' War raged across Europe. The Commonwealth was relatively uninvolved in this war but the Polish King
Sigismund III Vasa sent an elite and ruthless
mercenary unit, the
Lisowczycy, to aid his
Habsburg allies in Vienna, since his brother-in-law was the Emperor. They defeated
George Rákóczi of
Transylvania at the
Battle of Humenné in 1619.
Gabriel Bethlen, the reigning Prince of Transylvania, asked
Sultan Osman II for aid. The sultan agreed and a large Ottoman army was gathered for a punitive invasion of the Commonwealth.
Campaign of 1620 On 20 September 1620, an Ottoman army under the command of the governor of Oczakov (Ozi)
Iskender Pasha routed the Commonwealth army at the
Battle of Cecora, captured
Stanisław Koniecpolski and beheaded
Stanisław Żółkiewski, sending Tatar raiders to ravage southern Poland. In April 1621 an army of 120,000–160,000 soldiers This army numbered 30,000 (18,000 cavalry, 12,000 infantry) and their allied Cossack army led by
ataman Petro Konashevych-Sahaidachny was composed of 25,000–40,000 troops, mostly infantry, and about 22 guns. ==Battle==