In Western Europe, we typically associate Vikings with the storm-tossed waters of the North Sea and the North Atlantic, the deep Scandinavian fjords and the attacks on the monasteries and settlements of north-western Europe. This popular image rarely includes the river systems of Russia and Ukraine, the wide sweep of the Eurasian steppe, the far shores of the Caspian Sea, the incense and rituals of the Eastern Orthodox Church and the high walls and towers of the city of Constantinople. Yet for many Viking raiders, traders and settlers, it was the road to the East that beckoned. These Viking adventurers founded the Norse–Slavic dynasties of the Rus, which are entangled in the bitterly contested origin myths of Russia and Ukraine. The Rus were the first community in the region to convert to Christianity – in its Eastern Orthodox form – and so they are at the heart of the concept of 'Holy Russia'. Russian rulers have frequently referenced these Norse origins when trying to enhance their power and secure control over the Ukrainian lands, most recently demonstrated by Vladimir Putin as his justification for seizing Crimea and invading Ukraine. In this fascinating and timely book, historian Martyn Whittock explores the important but often misunderstood and manipulated role played by the Vikings in the origins of Russian power, the deadly consequences of which we are still living with today.