"Napoleon and Alexander I (2/3): The Russian Union during the First Empire" is the second part of a trilogy by the distinguished French historian Albert Vandal about the relationship between Napoleon and the Russian emperor Alexander I. In this book, the author explores the complexity of intrigues, negotiations and diplomatic efforts , aimed at creating an alliance between the two great states of that time. Vandal takes a detailed approach to the analysis of the events preceding the alliance, and also reveals the influence of this alliance on the further development of events in Europe. It offers the reader a deeper understanding of the causes and consequences of this important page in the history of the 19th century.