The People's Army of Komuch (Russian: Народная армия КОМУЧа) was an anti-Bolshevik army during the Russian Civil War; it fought from June to September 1918 in the Volga Region.
In May 1918 the Czechoslovak Legion revolted on the Trans-Siberian Railway. On June 8, the Czech Legion captured Samara, Russia, and several members of the Constituent Assembly, which had been dissolved by the Bolsheviks, organized a Committee of Members of the Constituent Assembly. On the same day an organization of underground officers was established under the supervision of the Socialist-Revolutionary Party. On June 10 a group of officers of the general staff arrived and helped organize a military structure. They created a detachment of 350 men, with had two infantry companies, a cavalry squadron and mounted artillery. General Vladimir Kappel became a chief of this military group. Kappel was a monarchist, and stated that he would fight under any banner against the Bolsheviks.
In Russian "Constituent Assembly" is transliterated as "Uchreditel'noe Sobranie", hence the abbreviation for the full committee in English is "Komuch").
On June, 11, Kappel's detachment stormed and captured Syzran, then Stavropol, Buguruslan and Buzuluk. On July 21, after a 150-km march, the Russian-Czechoslovakian detachment under Kappel's command stormed and captured Simbirsk; for this victory Kappel was promoted to colonel. On July 22, Kappel officially became the head of all Komuch forces, which consisted of two infantry regiments and several artillery batteries (about three thousand men altogether).