The immediate reaction of German Prisoners of war upon being forced by the US Army to watch to the uncensored footage of the concentration camps shot by the US Signal Corps, 1945. After the liberation of the Nazi concentration camps, films of the atrocities of the Holocaust were shown to the prisoners, which engendered shock, anger, and disbelief; amazed and disbelieving prisoners nicknamed them knocken films (films of bones). After compulsory viewing of an atrocity film, 1,000 prisoners at Camp Butner dramatically burned their German uniforms while a few prisoners even volunteered to fight in the war against Japan (the idea however was dropped by the American military). This forced process itself was part of the Allied policy of postwar denazification, meant to purge Germany of the remnants of Nazi rule and rebuild its civil society, infrastructure, and economy.
Source :
https://www.checkhookboxing.com/index.php?threads/eerie-creepy-photos-updated-the-story-behind-the-japanese-samurai-sword-assassination-photo.40853/page-96
http://www.historyinorbit.com/rare-historic-photos-n/13