 Simultaneously, he was also one of the leaders of the clandestine People's Party, active within the system of the Polish Secret State.As such in 1940 he became a member of the Political Communications Committee, a clandestine political platform attached to the underground army as its political arm and a nucleus of the future parliament.Supported by most parties, already in April of the following year he became the chief of the Directorate of Civil Struggle, the agenda of the Polish government responsible for the coordination and organization of civilian resistance, information and propaganda.