The book is based on the analysis of archival documents, published sources and scientific literature for the first time a comprehensive study of the history of formation and struggle of insurgent army units in the military-territorial unit of the UPA - VO 3 "Lysonya". military district of the UPA "Lysonya" against the German and Soviet occupation regimes and the Polish underground, recreated the structure of the district and its subordinate formations, revealed military, organizational, territorial division, and established leadership of Ukrainian People's Self-Defense groups,
The book is addressed to historians, scientists, teachers, students, as well as anyone interested in the history of the Ukrainian Insurgent Army.