The Libcom library has posted a recently written article (by Wayne Foster) on The Makhnovists and the Mennonites: war and peace in the Ukrainian Revolution
Abstract [from libcom]: This is a story about massacres that occurred in Southern Ukraine between 26th October and 7th December, 1919. The victims, avowedly-pacifist German Mennonites, included several women and elderly people; in Eichenfeld, almost one third of the village population was killed, including a 65 year-old blind woman. All the massacres occurred in the vicinity of the Makhnovist army. And then, after six weeks, they stopped. [NB: this is a draft version. Comments and corrections will be greatly appreciated]
This is also the story of an émigré community whose members invented an anarchist bogeyman to justify having betrayed their pacifist principles. It’s about estate owners who earned 3000 times what they paid their labourers, landlords who conscripted soldiers to protect their wealth, and pacifists who fought for an army that killed tens of thousands of Jews.
Full article at http://libcom.org/history/makhnovists-mennonites-war-peace-ukrainian-civil-war
It’s not strictly relevant to Bolshevik repression of anarchists, but well worth reading.