In June 1941, German mobile killing squads, known as Einsatzgruppen, were dispatched throughout Eastern Europe.

By the spring of 1943, the 3000 members of the Einsatzgruppen, led by highly-educated officers and aided by local collaborators in each country, had systematically murdered over a million Jews and tens of thousands Roma, handicapped, Poles, Russians, partisans and non-combatants.

More info:
http://pl.wikipedia.org/wiki/Einsatzg…
http://en.wikipedia.org/wiki/Babi_Yar
http://en.wikipedia.org/wiki/SS_Galizien
http://en.wikipedia.org/wiki/Huta_Pie…

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