Rubuta ci gaba don wannan sakin layi - Bayan umarnin sirri na Vladimir Lenin, sun aika da mafi kyawun rukunin sojan doki na Red Army a ƙarƙashin jagorancin Budyonny a kan Corps na Mamontov, wanda ya yi nasara a watan Nuwamba 1919 bayan gwagwarmaya mai wuya da jini a cikin Yaƙin Voronezh, Kastorensk da kuma ayyukan Kharkov a ƙarshen 1919. Wadannan hare-haren biyu sun danganta kai tsaye da aikin Orel-Kursk
a 1919 kuma sun kasance wani ɓangare na babban aikin soja a cikin Red Army counter-offensive a kudancin gaba. Sojojin Mamontov sun yi nasara da sojojin sojan doki na S. M. Budennyi a Kastornaia a watan Nuwamba 1919. Wannan rashin nasara ya kasance mai mahimmanci ga ƙarfafa ikon Bolshevik kuma ya raunana halin kirki na sojojin anti-Bolshevik. Daga baya aka sauke Mamontov daga mukaminsa, amma bayan 'yan kwanaki aka sake nada shi a mukaminsa. Mamontov ya mutu a ranar 14 ga Fabrairu 1920 a Ekaterinodar na typhus.