1920 Georgian coup attempt
The Georgian coup in May 1920 was an unsuccessful attempt to take power by the Bolsheviks in the Democratic Republic of Georgia. Relying on the 11th Red Army of Soviet Russia operating in neighboring Azerbaijan, the Bolsheviks attempted to take control of a military school and government offices in the Georgian capital of Tiflis on May 3.
Source: Wikipedia — 1920 Georgian coup attempt (CC BY-SA 4.0)