After the capture on November 26 by the Polish forces of Rava-Ruska, as well as the railway junction of Khyriv south of Lviv, the situation of the UGA has become much more complicated.

The Poles immediately gained a significant strategic position from Khyriv and Rava-Ruska threatening both wings of the front.

[2] Later in the battle, an enemy shell exploded in the boiler of an armored steamer, killing the fireman; he was buried in Sambor with military honors.

A night offensive was then organized, and in the late evening occupying Dobromil, at the end of the day Nowe Miasto (Nove Misto).

The armored train of the chetar Sadlich operated in the direction of Ustrzyki, its crew blew up a railway bridge.

At the beginning of December, General Zygmunt Zelinsky became the head of the Przemyśl Military District; almost immediately he received an order to counterattack towards Chyrów and Sambor.