JEELEN said:
Wasn´t - in spite of Suharto´s claims - a terrorist organization.
My earlier response was overly witty. The first point I would like to make is that there were
three successive PKIs. The first was formed in 1924, rebelled in 1926 and was promptly crushed
by the Dutch. At that time it was labelled a terrorist organisation. Most of its members (and many others) about 20,000 in all were arrested. About a quarter were put in prison, interned or exiled to a pleasant malarial infested hell-hole Digul in Irian Jaya. A number of the exiles subsequently died of the conditions. But whatever. The party itself was banned in 1927 by the Indies government.
It was forced underground with new
ish leadership and is accordingly seen to be a second incarnation of the PKI. It built up its strength during the inter-war years mostly through the unions it controlled. During the war it fought rather effectively against the Japanese. This caused it to be again listed a terrorist group. By the time the war ended it had built up a strong following amongst parts of the populace and the various quasi-military groups left over from the Japanese.
It was only moderately successful until Musso, its leader-in-exile, returned in 1948. He managed to cobble together a leftist alliance and tried unsuccessfully to use that as a wedge to get himself into power. This failed, rather miserably. Sukarno and Hatt then began to disband his power-base from under him screwing up his immediate plans to overthrow the government. He resolved to just sit and wait and rebuild.
Unfortunately, for him, a bunch of his mid level cadres in Madiun didn't like that approach and decided to run with the original, already spoiled, coup plan. Musso tried to appeal for calm and that seemed to work for a while at least. Then thinking everything was going to hell anyway he decided to throw in his lot with the coup attempt. It failed, miserably.
In the aftermath it became clear just what the PKI had intended to do in Indonesia when the bodies of thousands of public servants, political party members, ulema, shop-owners, landowners and just about every non-communist notable in the city and surrounding area were found with bullet shaped holes in the back of their heads. That was terrorism plain and simple as most of it had occurred
before the Republic could respond in force and just
before the final defeat.
The PKI at this point ceased to exist for the second time. It was reconstituted in 1949 rather secretly and was allowed to build up strength again because it was willing to prostitute itself to Sukarno. Democracy, bah. Guided Democracy is where its at! Its power would peak in 1964-65 when it began serious attempts to force the land reform issue that had been simmering since independence.
It lacked viable targets for the most part because the nobility where it was strong weren't all that wealthy and didn't hold that much land. It consequently was forced to look for easier targets and its eyes settled on the moderately wealthy, ulema and government officials. Both were the target of killings, beatings and general nastiness by the party designed to get them to hand over their rather meagre amounts of additional land.
Basically, it overplayed its hand and got overly violent and had to be called off. It also had nothing much to show for what it had done either which helped. It then fixated itself on trying to buttress its own power by attacking the army. The basic idea was to run a smear campaign alleging that a 'Generals Council' was planning to overthrow the government. It then used mass rallies and various other means to press the issue. This worked and the military spooked and lowered its profile.
The PKI didn't stop however. It pushed further and proposed to create a new military force drawing on the peasantry. This didn't go down well with the army. But that was fine it drummed up still more anti-generals fervour. We don't know exactly what happened on the morning of September 30 1965. Its likely that some mid-level cadres again, like in 1949, acted at the wrong time. Whatever the case units affiliated to the PKI tried to knock out the army hierarchy in anticipation of a fictional army coup of their own creation.
It failed miserably and Suharto managed to take command leading a rather effective counterstroke against a distracted and frankly confused PKI. Unfortunately, the PKI looked like it had abducted the President and wasn't in the mood for negotiations. It had also assembled before the coup a relatively large force of pro-PKI marines and cadres at a Halim air-force base. Quite why, we don't know. It is possible that they were there for the purposes of a later coup. Certainly, documents taken from the PKI offices in Jakarta support that conclusion. But it isn't certain.
Basically, the PKI got annihilated as political force by the civilians it had managed to piss off in the earlier land reform drive. The military was distracted with rounding up the big names and wasn't all together interested in settling the personal grievances of the villages of East Java. It was kinda messy. But not altogether unprecedented or unprovoked. It was prescribed in 1966 and its members were listed as terrorists.