•By 1921, he had organised the Tambov peasants into an army of more than 20,000 men which were known as the “Blue Army” (to distinguish themselves from the Reds and Whites).•Lenin denounced the uprising and declared the Tambov army a rabble comprised of kulaks. Privately, he realised they posed a danger to Moscow.•More than 100,000 Red Army troops were sent to Tambov, led by experienced commanders like Tukhachevsky. They were ordered to shoot all suspected rebels and poison gas was used to flush them out of hiding•Antonov evaded capture until 1922 when he was killed.