This is the first monograph on the history of the Militant Wing. Even though the terrorist activity of the party is well known, new archive materials trace the formation of the views and ideology of the participants. The dynamics of the Wing activities are traced through the periods of being headed by G. A. Gershuni (1901-03), provocateur E. F. Azef (1903-09) and B. V. Savinkov (1909-11). Demographic statistics for the Wing members are presented. Bibliographic references.