Atamanshchina

Atamanshchina (Russian: атаманщина), otamanshchyna (Ukrainian: Отаманщина, Отаманія), or atamanism was a political situation during the Russian Civil War in Ukraine and in some parts of Russia. With absent or weak central power, some areas were ruled by warlords, typically styled as atamans, a traditional Cossack military rank. In Ukraine, these atamans showed lack of subordination towards the Second Hetmanate and later towards the Directorate of Ukraine.

The peak of the phenomenon took place in 1919. Over time the term acquired the generic meaning of the decentralized rule of warlords.