In early 1595 Sigismund Báthory, Prince of Transylvania, convinced Ștefan Răzvan, a commander of Hungarian mercenaries in the service of the then HospodarAaron the Tyrant to rebel. Ștefan captured Aaron and sent him to Transylvania, then proclaimed himself as the new Hospodar and a vassal of Sigismund. In response the Ottoman SultanMehmed III, who had been Aaron's protector and sovereign, decided to put an end to the ongoing power struggles in Moldavia, Wallachia and Transylvania between various magnates. While Wallachia was to receive a new Turkish sponsored ruler, Moldavia was to be simply incorporated into the Ottoman Empire as a province. The Ottoman intervention aroused alarms in the Polish-Lithuanian Commonwealth which sought to reestablish its influence in the region, having lost sovereignty over Moldavia some hundred years earlier after the Battle of the Cosmin Forest.
Battle
In the summer of 1595 the crown army of the Kingdom of Poland, numbering around 5000 cavalry, 2300 infantry and a few artillery pieces, led by the Crown Hetman Jan Zamoyski entered into the territory of Principality of Moldavia and on the 27th of August took Chocim and shortly after, on September 3, the capital of the principality, Iași. Zamoyski then installed Ieremia Movilă, who was amicably disposed towards the Polish-Lithuanian Commonwealth, as Hospodar of Moldavia. Zamoyski's intent was to create a buffer zone of friendly states around the Polish-Lithuanian Commonwealth, consisting of Moldavia, Transylvania and Wallachia, in order to protect it from Ottoman Turkey. The Ottomans reacted swiftly, although at the time the Sultan Mehmed III was engaged in a war against Michael the Brave, the Prince of Wallachia. The Sultan send the Crimean Tatars, under KhanĞazı II Girej, supported by regular Ottoman troops, altogether numbering around 25,000 soldiers, to meet thePolish army. Upon hearing that the Tatars were approaching, Zamoyski crossed the Prut river and on September 6 had his troops erect a fortified camp, which was protected on both flanks by the river. The front of the camp in turn was defended by a rampart studded with thirteen bastions. The rampart also possessed four sally ports which could be used for sorties. The Khan's army arrived on the 18th of September. That day minor fighting took place among individual skirmishers, during which Prince Kirill Różyński wounded the khan's nephew with a bow. The main fighting took place the following day when the khan's troops tried to storm the Polish camp. However, because the Tatars had few infantry the attempt was unsuccessful, and the attackers were constantly harried by Polish sallies issuing from the camp. After the struggle went no better for the Tartars on the 20th, Ğazı came to the conclusion that he did not have the means to take the camp and agreed to peace talks. On October 21 a peace treaty was signed, according to which the Tatars recognized Movilă as Hospodar in Moldavia, and assented to Polish troops being permanently stationed in the Principality. Two days later the Tatar army began its withdrawal.
