The Activity of the Social-Democratic Group 'Yedinstvo' in 1918-1919

G.V. Plekhanov was a cut above like-minded people of the "Yedinstvo" by his authority, the last stage of its existence remained practically unreported in the historical literature. It was established in the process of research that at that time activity of the group was crowned with an extremely curious historical paradox. As the supporters of Plekhanov, who was the founder of the National Social Democracy at his time, the "Reds" during the Civil War and stood on the other side of the barricades and supported Denikin, the "white" general and the worst enemy of their former party members, in 1919.