Heu-Aktion

Heu-Aktion was the name of an operation to kidnap 40,000 to 50,000 Polish, Belarusian and Ukrainian children by German armed forces for slave labour in Nazi Germany. The term means collective harvesting of hay

Kidnapped children were deported to Nazi Germany and handed over to Organisation Todt and Junkers works. This was with the intention to pressure the adult populations of occupied territories to register as workers in Nazi Reich, and to weaken the “biological strength” of the enemy population of the Soviet Union which Germany invaded.

Originally head of the Reich Ministry for the Occupied Eastern Territories, Alfred Rosenberg proposed to kidnap the youth population between the ages of 15-17, fearing that targeting such young victims would be seen widely as simple abduction, but after actions of 9th Army he consented to kidnapping of children between ages 10 and 14.

The children were transferred to special camps for children called Kindererziehungslager, where Germans studied them for "racial traits", to select children suitable for Germanization. If they were determined to be racially unworthy, their birth certificates were destroyed and names were changed, before being sent to forced labour or to concentration camps, including Auschwitz

Kidnapping operations were made by the Army Group Centre, and 2nd Army, where Henning von Tresckow signed the order to abduct the children on 28 June 1944 as its Chief of Staff.

The operation reached its peak in 1944, but due the course of the war never reached its fully intended scale.

Post war
The Nuremberg Trials classified the kidnapping of children as part of the Nazi program of systemic genocide