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In page Jens Müller (pilot):

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The remaining 73 escapees were recaptured. Adolf Hitler wanted to have them all shot, but Heinrich Himmler (or possibly Hermann Göring) persuaded him not to do this. Instead, fifty of the escapees were executed to make an example. This was a serious breach of the Geneva Convention which constituted a war crime. The remaining 23 recaptured prisoners were held in the custody of the Gestapo before being sent off to other camps. Of these, 17 were returned to Stalag Luft III, four were sent to Sachsenhausen, and two to Colditz Castle.[5]