Battle of Oleshia

Battle of Oleshia
Part of the Mongol invasion of Kievan Rus'
DateMay 1223
Location
Result Kievan Rus' victory
Belligerents
Principality of Galicia–Volhynia
Principality of Chernigov
Mongol Empire
Commanders and leaders
Daniel of Galicia
Mstislav Mstislavich
Gemebek 
Strength
1,000 cavalrymen Unknown
Casualties and losses
Unknown Entire force killed or captured

The Battle of Oleshia took place between the cavalry of Rus' princes and a unit of the Mongol Empire led by general Gemebek, in May 1223, near Oleshia (likely in modern-day Kherson Oblast, Ukraine); it ended in a Mongol defeat. The battle took place prior to the Battle of the Kalka River, which occurred on 31 May 1223.