Gen. A. H. Nasution. Nasution had a long career in and out of leadership in Indonesia. He was a major military leader during the struggle for independence, commanding the Siliwangi division in West Java. In 1952, he was dismissed from his command during a period of conflict between the army and Sukarno. By 1955, he was back in favor. In 1958, during the time of the PRRI and Permesta rebellions, Nasution first suggested the idea that would later be called ‘dwifungsi’, the ‘dual function’ of the military, the idea that the military should have social and even political obligations as well as defense duties