Faced with the relentless and unstoppable advance of the Soviet Red Army, from the spring of 1944 until the capitulation of the Third Reich in May 1945, the Nazis evacuated the labor, concentration and extermination camps, factories of pain and death which, during years of nightmare, they had established in the occupied eastern territories. Forced to travel enormous distances, thousands of people died along the way from hunger, thirst and exhaustion.