Dybenko attempted suicide, and Kollontai arranged a diplomatic mission for herself, just to be as far as possible from him. Dybenko was married twice more. After finishing the Academy, Dybenko was appointed Commander of the 5th Rifle Corps of the Red Army, and then the 10th Rifle Corps and restored as a member of the Communist Party. Dybenko served between 1925 and 1928 as a head of the Artillery Directorate and the Supply Directorate of the General Staff of the Red Army. In 1928 he was sent to command the Central Asia Military District. To mask his ignorance in military matters, he always preferred "the Iron Fist method". He created a Border Guard and fought against smugglers. He suppressed the local nationalists and Muslim devotees with notable cruelty. He did not hesitate to attack civilians in the peacetime, or to set fire to entire populated villages. In 1930 Dybenko was sent, with a numerous group of other generals, to Germany. In 1933 Dybenko was appointed the Volga military district commander. According to Stalin's well known method, his enemy of old, corps commander Ivan Semenovich Kutyakov (ru), a renowned hero of the Civil War, was assigned as Dybenko's deputy. Both wrote many slanderous letters against each other. This slander caused the liquidation of Kutyakov in 1937. Kutyakov was arrested by NKVD men in Dybenko's office, with Dybenko's personal assistance, and soon was shot. Dybenko himself suffered no harm. Kutyakov's complaints contained mainly the truth about Dybenko's brutality, drunkenness and incompetence. These accusations were well known in the top level of the Soviet army. Tukhachevsky and Uborevich openly criticized him. But he wrote an explanatory letter to Voroshilov, then the Defence Minister, and was pardoned. Later in 1937, Dybenko assisted the NKVD in preparing Tukhachevsky's arrest. Dybenko became a member of the Supreme Soviet of the USSR, was promoted to Komandarm second class ("Four Rombs", at that time it was equivalent to a 4 star general), and appointed the Leningrad military district commander after Iona Yakir's downfall. The Leningrad military district was always one of the most important districts, second only to Kyiv. Wherever he was, he loved rich life. For example, while serving in 1935—1937 as the Volga military district commander, he annexed an island on the Volga river, 57 square kilometers large, just for hunting entertainment for himself and his friends. Dybenko personally led the purges in the Leningrad military