The book "History of the Great War. Volume 2. History of the European War according to Official Source Materials" is the second volume in the edition, which tells about the events of the First World War. The author uses official documents and sources to thoroughly present the history of the war in Europe. This book includes detailed descriptions of key events, battles, strategies, and important political movements of the time. The author analyzed the circumstances preceding the start of the war, the dynamics of its development, as well as the consequences for Europe and the world as a whole. Readers will be able to deepen their understanding of the events and causes that led to one of the greatest conflicts in human history. The book "History of the Great War. Volume 2" is a valuable resource for those interested in military history, politics and geopolitical relations of the last century. The author tried to reproduce an objective view of the events of that time, helping readers to better understand the context of the events and their consequences.