Yet this moment of fate for millions of people still has much to teach us. One important lesson is that one should be extremely wary of any generalization concerning the conduct of individuals. Extremes of human suffering and even degradation can bring out the best as well as the worst in human nature. Human behaviour to a large extent mirrors the utter unpredictability of life or death. Many Soviet troops, especially in frontline formations, unlike those who came behind, often behaved with great kindness to German civilians. In a world of cruelty and horror where any conception of humanity had almost been destroyed by ideology, just a few acts of often unexpected kindness and self-sacrifice lighten what would otherwise be an almost unbearable story.

This book could not possibly have been researched without the help of many people. I am first of all deeply obliged to the directors and staff in numerous archives: Colonel Shuvashin and the staff of the Central Archive of the Ministry of Defence (TsAMO) at Podolsk; Dr Natalya Borisovna Volkova and her staff at the Russian State Archive for Literature and the Arts (RGALI); Dr Vladimir Kuzelenkov and Dr Vladimir Korotaev of the Russian State Military Archive (RGVA); Professor Kyrill Mikhailovich Andersen and Dr Oleg Vladimirovich Naumov at the Russian State Archive for Social-Political History (RGASPI); Dr Manfred Kehrig, Director of the Bundesarchiv-Militärarchiv, Freiburg, and Frau Weibl; Dr Rolf-Dieter Müller and Hauptmann Luckszat at the MGFA in Potsdam; Professor Dr Eckhart Henning of the Archiv zur Geschichte der Max-Planck-Gesellschaft; Dr Wulf-Ekkehard Lucke at the Landesarchiv-Berlin; Frau Irina Renz of the Bibliothek für Zeit-geschichte in Stuttgart; Dr Lars Ericson and Per Clason at the Krigsarkivet in Stockholm; John E. Taylor, Wilbert Mahoney and Robin Cookson at National Archives II, College Park, Maryland; Dr Jeffrey Clarke at the United States Army Center of Military History.