Battle of Irtysh River (1585)

Battle of the Irtysh
Part of the Russian conquest of Siberia

Operational Navigation Chart of the Irtysh River
DateAugust 6, 1585
Location
Bank of the Irytysh river (Modern-day Omsk)
54°59′N 73°22′E / 54.983°N 73.367°E / 54.983; 73.367
Result Decisive Sibir victory
Territorial
changes
Reconquest of parts of Sibir by Kuchum Khan
Belligerents
Khanate of Sibir Tsardom of Russia
Commanders and leaders
Kuchum Khan Yermak Timofeyevich 
Strength
Unknown, more 633 men
Casualties and losses
Unknown, less 630 killed

The Battle of the Irtysh, also called the Battle of Omsk, was a decisive military engagement fought between the Khanate of Sibir and the Tsardom of Russia, and saw the death of Russian General Yermak Timofeyevich and the reconquest of Sibir by Kuchum Khan.