He was shot dead on 10 February 1938. Monument of Antonov-Ovseenko in Chernihiv, removed in 2015. Antonov-Ovseenko was the first former Trotskyist to be posthumously rehabilitated, and in 1956 was named in a speech by Anastas Mikoyan to the 20th party congress of the CPSU.
Vladimir Antonov-Ovseenko (centre) with officers from the Red Army. Ovseenko was a graduate of a military school [Sergey Kozmin/Al Jazeera]. “I respect my grandfather but condemn Bolshevism...
On 12 June 1921, Tukhachevsky received permission from Vladimir Antonov-Ovseenko to begin the use of chemical weapons against the remaining rebels. They ordered their troops to clear the forests with poison gas, stipulating that it "must be carefully calculated, so that the layer of gas penetrates the forests and kills everyone hiding there."
Vladimir Alexandrovich Antonov-Ovseenko , real surname Ovseenko, party aliases 'Bayonet' and 'Nikita' , literary pseudonym A. Gal , was a prominent Bolshevik leader, Soviet statesman, military commander, and diplomat.
By Nov. 6, 1917 (Oct. 25 in the Julian calendar, which was used in Russia until 1918), the Provisional Government that ruled Russia after Nicholas II’s abdication in March was in a weak position....
Vladimir Antonov-Ovseenko, commander-in-chief of the Ukrainian Front during the Soviet invasion. Kharkiv offensive. In December 1918, the Ukrainian Soviet divisions were put at the disposal of Antonov-Ovseenko. Numbering approximately 5,000 soldiers each, the divisions were still not full-fledged regular formations.
Leon Trotsky and Vladimir Antonov-Ovseenko, led the Red Army and gradually pro-Bolsheviks took control of the Ukraine. By February, 1918, the Whites held no major areas in Russia but it was not until late 1920 that the Civil War came to an end.
At the end of April 1919, Vladimir Antonov-Ovseenko made an attempt to reach an agreement with Hryhoriv, who commanded the largest grouping of troops on the front and whose attitude essentially determined the success of further plans, including the concept of a march against the Romanian troops in Bessarabia and an intervention in Hungary. 
His father, Vladimir Antonov-Ovseenko, was an outstanding revolutionary who personally led the 1917 Bolshevik storming of the Winter Palace. During the bitter factional struggles after Lenin's death in 1924, the elder Antonov-Ovseenko sided with Trotsky for several years before finally capitulating to Stalin's 'general line.''
This alarmed local Bolsheviks, led by Vladimir Antonov-Ovseenko, who desperately attempted to establish a defensive line through the region, marking the capture of Oleksandrivsk as a necessity to prevent the UPA from linking up with the Don Cossacks.