On 20 January 1942, Heydrich chaired a meeting, now called the Wannsee Conference, to discuss the implementation of the plan.[77] Facilities such as Chelmno, Majdanek, Sobibor, Treblinka, and Auschwitz have their origins in the planning actions undertaken by Heydrich.[78] 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.[79] The SD was declared a criminal organization after the war and its members were tried as war criminals at Nuremberg.[lower-alpha 7] 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.[81]