In the march of 1674, joint Russian and Cossack army invaded the right-bank Ukraine, which was at the time an Ottoman protectorate under the rule of Petro Doroshenko. Allied army captured most of the region and as a result, Samoylovych was proclaimed as a hetman of right-bank Ukraine by ten regiments, including the Uman regiment. In July, the Cossack-Russian army besieged the Doroshenko's capital – Chyhyryn. To help his ally, Ottoman sultan Mehmed IV sent an army to the right bank.[citation needed] At the end of July, the Ottoman army entered Ukraine and fought the Cossacks at Ladyzhyn, with initial attack being was repelled, but after a several days-long siege, the city surrendered. Romodanovsky and Samoylovych, finding out about the approaching Ottoman army withdrew beyond the Dnieper, leaving the Cossack garrisons in the Right-bank Ukraine without any support.
Siege
In August, the Ottoman army with a total strength of approximately 20,000 men[1] besieged the city. Locals sent letters to the left-bank Hetman Ivan Samoilovich and Grigory Romodanovsky asking for help, but without any consequences. Ottoman army launched several assaults but all of them were repelled by the Cossacks, causing a heavy casualties among the Turks. However, once the Uman colonel Stepan Yavorsky was captured, Ottoman army launched another series of assaults that led to an eventual fall of Uman.[2]
Aftermath
Uman was destroyed[4] and most of its inhabitants were either killed or captured by the Turks while some managed to escape to the Left-bank. Despite the victory, Ottoman army suffered heavy losses and was forced to abandon their plans of capturing Kiev.[2] Ottomans have also lost two of their commanders during the siege, Kigay and Chorbay.[1]
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Cossack Hetmanate 
Ottoman Empire