Great Indonesia Party  The Great Indonesia Party (, Parindra) was the name used by two Indonesian political parties. The first Parindra was established in 1935 as a result of a merger between the Budi Utomo political society and the Indonesian National Union ("Perserikatan Bangsa Indonesia") with the aim of working with the Dutch to secure Indonesian independence. It was led by Raden Soetomo, Mohammad Husni Thamrin, Susanto Tirtoprodjo, Sukarjo Wiryopranoto and Woerjaningrat, and became the most influential Indonesian grouping in the Volksraad, the notionally legislative body established by the Dutch. In May 1939, Thamrin was the main driving force behind the merger of Parindra and seven other nationalist organizations into the Federation of Indonesian Political Parties {"Gaboengan Politek Indonesia", GAPI). The second Parindra was established as a "splinter party" in 1949 by one of the leaders of the pre-war party, R.P. Soeroso. Its membership comprised members of the old Parindra that had decided not to join the PNI