Also known as Darul Islam. Indonesian Islamic insurgent movement that challenged the legitimacy and authority of the newly independent Republic of Indonesia between 1948 and 1962. Led by Sukarmadji Maridjan Kartosuwiryo. Consisted of military forces known as the Indonesian Islamic Army, which sought to enforce a proclaimed Islamic state. Initially supported by villagers and rural Muslim leaders of West Java. Support deteriorated with the rise of national resistance to Dutch colonialism in the 1950s and as military activities turned into rural terrorism; security problems created by extremism led political leaders to limit tolerated opposition to secular nationalism. Eradicated by government military forces.
See also Kartosuwiryo, Sukarmadji Maridjan