The first biographical directory of Latvian revolutionaries. From the first Marxists to the partisans and underground fighters of the Great Patriotic War. Latvian militants took part in battles with tsarist troops and police during the First Russian Revolution of 1905-1907. Red Latvian Riflemen in the Revolution of 1917 and during the Civil War. Party and military careers in the USSR, from the Cheka to the KGB. Pro-Soviet opposition in bourgeois Latvia between the two world wars. Participation in the post-war strengthening of Soviet power is all on the pages of this book. 960 biographies of Latvian revolutionaries, party and military leaders. Sources in the Latvian language were used, previously unknown and inaccessible to the Russian-speaking reader and other researchers. More than 300 photographic portraits are attached to the biographical information. The book is equipped with a historical essay and reference material. The publishing layout of the book is saved in PDF A4 format.