The Moldavian Cossack campaigns of 1593–1595 were a series of expeditions by Zaporozhian Cossacks into Moldova, which was under the suzerainty of the Ottoman Empire.
Background.
In 1593, a war broke out between the Habsburg Monarchy and the Ottoman Empire over control of Transylvania. Seeking allies against the Turks, Emperor Rudolph II dispatched Count Eric Lasota to the Zaporizhian Sich. With the support of Russian envoys, Lasota successfully persuaded the Cossacks to launch an incursion into Ottoman territories.
Campaigns.
In December 1593, Hryhoriy Loboda led 3,000 Cossacks in a raid on Ottoman fortress of Orhei in Moldavia and successfully plundered it. Cossacks plundered Izmail and Kiliya in the same year. In June 1594, Severyn Nalyvaiko gathered 2,000–2,500 Cossacks for the purpose of "fight against infidels". During this time, Ottoman army broke into Hungary. Cossacks again captured and plundered the Ottoman city of Izmail, freeing Christian captives. In 1595, Loboda's and Nalyvaiko's Cossacks jointly raided Izmail. Cossacks launched a campaign into Moldavia, while also besieged Kiliya and Budjak.
Aftermath.
At the end of these campaigns, Poland-Lithuania occupied Moldavia and signed a truce with the Ottoman Empire. Polish authorities had to deal with Cossack rebellions and placed many restrictions on Cossack register, which were only lifted in 1600.