 The murder operations began soon after the attack on Poland and lasted from the fall of 1939 until the spring of 1940.As the result of Nazi genocidal policy, in 10 regional actions 60,000 Polish teachers, entrepreneurs, landowners, social workers, military veterans, members of national organisations, priests, judges, and political activists were killed.The "Intelligenzaktion" was continued by the German AB-Aktion operation in Poland.