The topics of the thesis are the life stories of members of the Czechoslovak Sokol Community in the division VII. Hradec Králové, Karel Nesnídal, Josef Urban, Antonín Stiehl, František Weihrauch and Václav Válek after the Nazis involuntary terminated this organization on 8th October 1941. The aim of the thesis is to analyze the origin and structure of the Sokol resistance organization JINDRA, its activities in illegality (code names, passwords, specific encryption system), and to map the fate of these actors after contact with František Pecháček and follow-up connection with the group S21B and the paratrooper group Silver A. The work also deals with uncovering the organization after the arrest of Ladislav Vaněk, head of the JINDRA Group for Bohemia and Moravia, who decided to cooperate with the Gestapo to provide the secret German police the information about other members of the group and its content. The second part of the thesis deals with the arrest and imprisonment of Sokol officials, their conviction to death (Karel Nesnídal and other resistance fighters, leaders and officials of individual divisions) and to the special treatment (Urban, Válek, Weihrauch a Stiehl). The conclusion of the work is divided into the execution of Karel Nesnídal in the Plötzensee prison in Berlin, the death of his...