Members of the Red Army Faction Socialist Patients' Collective (SPK) and Movement 2 June (J2M). The SPK, the leftist, 'therapy-through-violence' group, dissolved in 1971, and those members who had turned militant forged links and joined with the Baader-Meinhof Gang. Brigitte Mohnhaupt, Klaus Jünschke Carmen Roll, and Gerhard Müller had already joined as part of the first generation of the RAF but originally started in SPK. Siegfried Hausner (24 January 1952 – 5 May 1975) was a leading member of the SPK especially involved with explosives. He took part in a bombing of the Axel Springer Verlag in 1971 and was the leader of the West German
Army group Army group An army group is a military organization consisting of several field armies, which is self-sufficient for indefinite periods. It is usually responsible for a particular geographic area. An army group is the largest field organization handled by a single commander—usually a full general or field marshal—and it generally includes between 400,000 and 1,000,000 soldiers. In the Polish Armed Forces and former Soviet Red Army an army group was known as a Front. The equivalent of an army group in the Imperial Japanese Army was a "general army" (). Army groups may be multi-national formations. For example, during World