"The Overlord"— a science-fiction novel by Aleksandr Sedyh and Vyacheslav Sedyh, the fifth book in the cycle “The Son of a Witch”; genre: action science fiction, alternative history.
Uniting, under an Old Russian flag, all the outcasts of the collapsed empire, the Son of a Witch created a Cossack–anarchist republic in Paraguay. He filled the state with extravagant technology: radio stations and submachine guns, airships and autogyros, steam-electric vehicles and ships with wind generators. However, the world bourgeoisie doesn’t like this revolutionary free-for-all—so Paraguay’s Cossacks are forced to fight the hydra of imperialism across the whole world: in Paraguay, Bolivia, Ethiopia, China, Spain, and even in the Soviet Union—but there, the story takes a slightly different turn…