The causes of the Polish-Ottoman War of 1672–1676 can be traced to 1666. Petro Doroshenko Hetman of Zaporizhian Host, aiming to gain control of Ukraine but facing defeats from other factions struggling over control of that region, in a final bid to preserve his power in Ukraine, signed a treaty with Sultan Mehmed IV in 1669 that recognized the Cossack Hetmanate as a vassal of the Ottoman Empire.^[83]

In 1670, however, hetman Doroshenko tried once again to take over Ukraine, and in 1671 Khan of Crimea, Adil Giray, supportive of the Commonwealth, was replaced with a new one, Selim I Giray, by the Ottoman sultan. Selim entered into an alliance with the Doroshenko's Cossacks; but again like in 1666–67 the Cossack-Tatar forces were dealt defeats by Sobieski. Selim then renewed his oath of allegiance to the Ottoman Sultan and pleaded for assistance, to which the Sultan agreed. Thus an irregular border conflict escalated into a regular war in 1671, as the Ottoman Empire was now prepared to send its regular units onto the battlefield in a bid to try to gain control of that region for itself.^[84]

Ottoman forces, numbering 80,000 men and led by Grand Vizier Köprülü Fazıl Ahmed and Ottoman sultan Mehmed IV, invaded Polish Ukraine in August, took the Commonwealth fortress at Kamieniec Podolski and besieged Lwów. Unprepared for war,the Commonwealth Sejm were forced to sign the Peace of Buczacz in October that year, which ceded to the Ottomans the Commonwealth part of Ukraine. In 1676, after Sobieski's 16,000 withstood the two-week siege of Żurawno, by 100,000 men under Ibrahim Pasha, a new peace treaty was signed, the Treaty of Żurawno.^[84]  The peace treaty partially reversing those from Buczacz: the Ottomans kept approximately two thirds of the territories they gained in 1672, and the Commonwealth no longer was obliged to pay any kind of tribute to the Empire; a large number of Polish prisoners were released by the Ottomans.