On November 4, units of the 5 Army liberated Ishim.
Ishim River(Russian: Иши́м/Išim;
Kazakh: Есіл/Esil) is a river running through Kazakhstan and Russia.
After the loss of Petropavlovsk and Ishim, the White Guards retreated to Omsk.
At the same time, the
3-I Red Army, crossing also Tobol, marched on Ishim.
After the fall of Petropavlovsk and Ishim, the Kolchakites began a hasty retreat to Omsk.
Ishim, hoping to create a new defensive line here
and try to stop the enemy's advance.
A few days later,
the 3 Army was to begin to move in the Ishim direction.
At the end of October 1919, the advanced units of the Soviet armies marched on the Ishim River.
The offensive was outlined by the forces of the 1,
2 and 3 armies at the front between Ishim and Tobol.
It was necessary to move, until the enemy came to his senses,
force the river and liberate the cities of Petropavlovsk and Ishim.
Kolchakites, having gathered considerable forces from Tobolsk, hoped to throw part of the Reds south and cut
off part of the 51th Division, which was advancing on Ishim.
Her right-wing 30-I division was advancing on Ishim and helped the troops of the 5-th Army to break
the resistance of the northern flank of the 3-th White Army.