Pyotr Nikolayevich Krasnov. However, Krasnov was defeated and taken prisoner. The Soviet authorities made him promise that he would not continue his struggle against the revolution and set him free. Krasnov fled to the Don region and in May of 1918 was elected Ataman of the Don Cossack Host. With the support from Germany, he equipped the army, which would oust the Soviets from the Don region in May-June of 1918. Wikipedia
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