"Rus and Rome. Cross and Gunpowder" is a fascinating study of the relationship between the Grand Duchy of Lithuania and the Kingdom of Poland in their attempt to unite Europe under the bloody events of the Crusades and the burning gunpowder of religious hatred. The author only lifts the veil of secrets of the past and reveals to the reader an impressive picture of the events that changed the face of two great civilizations. Did the concluded and signed agreements become a guarantee of peace and coexistence together? The book "Rus and Rome. Cross and gunpowder" helps to reveal different sides and forces that influenced the fate of historical figures and peoples, opening new depths of understanding of the past.