Kornilov affair
The Kornilov affair, or the Kornilov putsch, was an attempted military coup d'état by the commander in chief of the Russian Army, General Lavr Kornilov, from 10 to 13 September 1917 (Old Style 28–31 August), against the Russian Provisional Government headed by Alexander Kerensky and the Petrograd Soviet of Soldiers' and Workers' Deputies. The coup attempt was quickly thwarted, largely due to the efforts of the Bolsheviks, whose position was further strengthened as a result.