Coup successful Siberian Army Provisional All-Russian Government The Kolchak Coup or Omsk Coup[1][2][3][4][5] refers to the events of 18 November 1918, when members associated with the left wing of the Directory (Provisional All-Russian Government) were arrested by members of the White Army in Omsk and the subsequent decision of the All-Russian Council of Ministers to transfer sole supreme power to Alexander Kolchak, the Minister of Military and Naval Affairs.

According to Russian historian Valentina Dmitrievna Zimina [ru], the events that took place in Omsk on 18 November 1918 were generally the result of the struggle between two systems of government that unfolded after the overthrow of Soviet power in the Volga region and Siberia: the Omsk non-party “right” principle, personified by the Provisional Siberian Government, and the Samara narrow-party “left” principle represented by KOMUCH.

[6][7] On the night of 17 November, an incident occurred that seemed insignificant to eyewitnesses: at a city banquet in honor of the French General Janin, three high-ranking Cossack officers - the head of the Omsk garrison, Colonel of the Siberian Cossack Army Vyacheslav Ivanovich Volkov.

The Directory security battalion, consisting of Socialist Revolutionaries, was proactively disarmed by military members as part of the coup.

The Supreme Ruler was given the authority to take any measures, even emergency ones, to ensure the armed forces, as well as to establish civil order and legality.