squad of . On 14 May 1938, the Ordnersgruppe was formally transformed into new official organization called the (FS) which was openly built up following the example of the Nazi . SdP's chief Konrad Henlein was the 's leader, with Fritz Köllner becoming its secretary and Willi Brandner the chief of staff, also responsible for the buildup of squad groups. By 17 May 1938, the date of the organization's official registration, the had over 15.000 members. The started a wide recruitment program in June 1938. Its members were divided into three categories: Category A: The most trusted and physically capable members that were supposed to carry out the duty of guardians of "inner purity" of the SdP. Category A was composed of the so-called "surveillance departments" and was directly subordinate to the SdP. Apart from functions within the organization, its members were also collecting information on political opponents and conducting military espionage. Category B: Wider selection of members. Its members were trained for propaganda activities and for conducting terrorist and sabotage assaults. Category C: Mostly older members of FS, mainly former soldiers with World War I front line experience. Their main task was providing training to the B category members as well as being the FS's reserve force. FS squads were being built up as militias with local, district and regional formations and central staff. FS further created special squads: communication, medical and rear. The FS's squad leaders were trained directly by the Nazi in Germany. The FS became instrumental for the psychological warfare of the operation Case Green, smuggling weapons through "green border" from Germany, conducting various provocations of Czechoslovak armed forces and provocations on the border with Germany. Attempted putsch The German Nazi Party was convening its 10th congress between 5 and 12 September 1938 in Nuremberg, where it was expected that Hitler would make clear his further plans as regards Czechoslovakia. FS squads were kept in a state of high alert, ready to conduct any orders that may come from "higher up". On 10 September 1938, all FS district headquarters received orders to start large scale demonstrations, which escalated to a number of members of Czechoslovak law enforcement being wounded, as well as FS members in numerous cities already the next day. FS Vice- Karl Hermann Frank was in direct contact with Hitler, receiving instructions for the following days. Immediately after the highly anticipated Hitler's final speech