As early as 1946, the Committee collected two hundred thousand guilders from private individuals at meetings, but mainly from cultivation companies and textile magnates in the Indies, such as Gelderman and Van Heek. In a subsequent radio speech on both Dutch channels at the same time, on 2 January 1947, Gerbrandy attacked Sukarno, president of the Republic of Indonesia, and Van Mook, negotiator of the Linggadjati Agreement and lieutenant governor-general of the Dutch East Indies. He suggested military suppression of the Indonesian republic. In later radio addresses on 9 January, 8 February, 20 March, and 14 April 1947, he continued his criticism. The Committee also unsuccessfully addressed a 'supplication' to Queen Wilhelmina.
