Sudetenland, Bohemia, Moravia, Poland, Lithuania, as well as Russia. Since their task included cooperating with military leadership and vice versa, suppression of opposition in the occupied territories was a joint venture. There were territorial disputes and disagreement about how some of these policies were to be implemented. Nonetheless, by June 1941, the SS and the SD task forces were systematically shooting Jewish men of military age, which soon turned to "gunning down" old people, women, and children in the occupied areas. On 20 January 1942, Heydrich chaired a meeting, now called the Wannsee Conference, to discuss the implementation of the plan. Facilities such as Chelmno, Majdanek, Sobibor, Treblinka, and Auschwitz have their origins in the planning actions undertaken by Heydrich. Heydrich remained chief of the Security Police (SiPo) and the SD (through the RSHA) until his assassination in 1942, after which Ernst Kaltenbrunner was named chief by Himmler on 30 January 1943, and remained there until the end of the war. The SD was declared a criminal organization after the war and its members were tried as war criminals at Nuremberg. Whatever their original purpose, the SD and SS were ultimately created to identify and eradicate internal enemies of the State, as well as to pacify, subjugate, and exploit conquered territories and peoples. Organization The SS Security Service, known as the SS SD-Amt, became the official security organization of the Nazi Party in 1934. Consisting at first of paid agents and a few hundred unpaid informants scattered across Germany, the SD was quickly professionalized under Heydrich, who commissioned National Socialist academics and lawyers to ensure that the SS and its Security Service in particular, operated "within the framework of National Socialist ideology." Heydrich was given the power to select men for the SS Security Service from among any SS subdivisions since Himmler considered the organization of the SD as important. In September 1939, the SD was divided into two departments, the interior department (Inland-SD) and the foreign department (Ausland-SD), and placed under the authority of the Reich Security Main Office (RSHA). Inland-SD The Interior Security Service (Inland-SD), responsible for intelligence and security within Germany, was known earlier as Department II and later, when placed under the Reich Security Main Office, as its Department III. It was originally headed by Hermann Behrends and from September 1939 by Otto Ohlendorf. It was within this organization that Adolf Eichmann began working out the