The murderous activities of Himmler's Einsatzgruppen - or death squads - rank high among the horrors of the Nazi regime during the Second World War. These hand-picked groups followed in the wake of Waffen-SS and Wehrmacht units advancing intro Eastern Europe and Soviet Russia.

Their mass murder of civilians in the occupied territories will never be accurately quantified but is likely to have exceeded two million people, including some 1.3 million of the 6,000,00 Jews who perished in the Holocaust.

The graphic and shocking photographs in this Images of War book not only show the hunt for and rounding up of civilians, communists, Jews and Romani people but the active support given to the Einsatzgruppen by SS units and Wehrmacht units. The latter strenuously denied any collusion but the photographic evidence here refutes this.