Nazi Death Marches
Les Marches de la mort (original)
Due to the ruthless 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, over nightmarish years, 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.
It's a documentary and history movie, and has a rating of 7.6 out of 10 from Imdb which is usually fine for this kind of movie.
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Not found streaming from United Kingdom.