NEITHER A SINGLE NOR A DOMINANT POLITICAL PARIY EMERGED FROM the Indonesian nationalist struggle. Rather, before the declaration of independence in August 1945, during the physical revolution against the Dutch which terminated in December 1949, and in the subsequent years the nationalist movement has been fragmented into a diversity of political groupings. Even today, after many small parties have disappeared, there remain eight legally active parties; a ninth, the PKI (Partai Komunis Indonesia), is striving to put together an underground apparatus from the ruins of 1965. As each party is the centre of a network of mass organizations, the peasants, youth, women, students and workers are also organizationally fragmented.
The multiplicity of political parties is rooted in the division of Indonesian society into several distinct self-conscious, socio-cultural groupings, the alirans (lit: ‘streams’), whose distribution has changed little since 1945. They are cross-ethnic in nature and mostly encompass a broad range of socio-economic classes. The broad outlines of the aliran pattern become apparent through an examination of two fundamental cleavages that cut across society: one religious, the other between holders of traditionalist and modernist world views.