Heu Aktion
As Chief of Staff of the 2nd Army, Tresckow signed an order on 28 June 1944 to abduct Polish and Ukrainian children in the so-called Heu Aktion (Hay Action). Between 40,000 to 50,000 Polish and Ukrainian children aged 10 to 14 were kidnapped for Nazi Germany's forced labour program. The order read in part "In operations against gangs, any boys and girls taken between ages 10 and 13 who are physically healthy, and whose parents either cannot be located or who, as persons unable to work, are to be sent to the area earmarked for remaining families (the dregs are to be sent to the Reich)."
The kidnapped children were used as forced workers in the Todt organisation, Junker factories and in German handicrafts as part of an operation to "lower biological strength" of the enemies of Nazi Germany.
It is well known, though, that Tresckow continuously resisted these "systematic programs" of genocide, and therefore his part in Heu Aktion stands in contrast to his previously held views and activities. The operation, in any case, was not from his initiative but a part of a larger plan.
Read more about this topic: Henning Von Tresckow