The Don region of Russia has seen fighting between supporters and opponents of the Bolshevik regime. This conflict has already assumed a brutal character, with both sides killing or torturing their real or suspected enemies, using terror to cow their potential enemies. The Whites had hoped that the Don Cossacks would rally to their cause, but their support has been lukewarm at best. Instead the Reds have had the upper hand in the fighting and today Novocherkassk, the region’s capital, falls to the Red Army.
When Lenin hears the news, he is jubilant. Having just signalled acceptance of the Germans’ harsh peace terms, the Bolshevik leader needs all the good news he can get. The Whites have already been forced from Rostov, so now Bolshevik control of the Don is complete. Lenin proclaims the Russian civil war to be over.
Vladimir Lenin (Encyclopaedia Britannica: Vladimir Lenin)