60 Years After Indonesia’s Catastrophe
What the PKI’s Defeat Reveals About Revolutionary Strategy Today
The Massacre That Shook the World
In October 1965, the Indonesian Communist Party (PKI) faced an annihilation that remains among the worst defeats of the twentieth-century revolutionary left. Between 100,000 and 200,000 Communists and revolutionary sympathisers were systematically murdered by military and counter-revolutionary forces. In a matter of days, the world’s largest Communist party outside the Soviet bloc was destroyed. The international revolutionary movement never fully recovered from this blow.
Yet over six decades later, the left still struggles to understand what actually happened. Moscow and Peking offered only silence and evasion. Western accounts focused on Cold War spectacle. Even revolutionary organisations have often retreated into defensive declarations of solidarity without serious strategic analysis.
This is precisely the wrong response. The defeat in Indonesia was not a freak accident or a temporary setback. It was the catastrophic result of systematic strategic errors that can be identified, analysed, and learned from. Understanding these errors is vital not because Indonesia is ancient history, but because revolutionary movements today continue to repeat them.
The PKI’s Fatal Strategic Error
Two-Stage Theory and Parliamentary Dreams
The Indonesian Communist Party was not destroyed because it was too revolutionary. It was destroyed because it was not revolutionary enough.
The PKI leadership, under Aidit, had adopted a version of Stalinist two-stage theory that treated Indonesia’s revolution as unfolding in two distinct phases. First came the ‘national democratic stage’ in alliance with the nationalist bourgeoisie, represented by President Sukarno. Only after this stage was consolidated, the theory went, could the party move toward socialist tasks. This meant disciplining mass struggles, avoiding confrontation with the national bourgeoisie, and seeking a ‘peaceful road’ to socialism through parliamentary means and constitutional reform.
This was not an accidental policy. The PKI constitution explicitly stated: ‘To achieve its goal, the PKI follows the peaceful and democratic ways.’ When the party’s second secretary, M.H. Lukman, sought to justify this approach, he leaned heavily on Soviet arguments, particularly Khrushchev’s thesis that certain countries might achieve socialism through peaceful transition. The PKI leadership bought this line completely.
The consequence was political disaster. Instead of preparing the masses for inevitable armed confrontation with counterrevolutionary forces, the PKI concentrated on ‘mass recruitment’ and ‘parliamentary democracy.’ The party grew to over three million members, making it nominally the world’s largest Communist party. But this was a numbers game masking organisational weakness. New recruits received no serious ideological education. The party had no military preparations. Democratic centralism became paper compliance.
The ‘National Front’ Illusion
For years, the PKI subordinated itself to Sukarno’s ‘National Front,’ a coalition that claimed to unite workers, peasants, national bourgeoisie, and patriotic intellectuals against imperialism. In theory, this represented all anti-imperialist forces in ‘revolutionary democracy.’ In practice, it meant the working class surrendered its independence to bourgeois leadership.
The PKI accepted Sukarno’s ideology of ‘Pantja Sila’—a syncretic philosophy claiming to unite Islamic, Buddhist, nationalist, communist, and other traditions into a ‘unity in diversity.’ Rather than seeing this as a liberal ideology designed to prevent the emergence of independent working-class consciousness, the PKI embraced it as genuinely revolutionary. Aidit himself stated that the party ‘accepted Pantja Sila also from the Marxist-Leninist viewpoint.’
This was capitulation dressed in revolutionary language. The national bourgeoisie—represented by Sukarno and his generals—used the PKI’s loyalty to consolidate their own state power. Meanwhile, the party prevented the masses from developing independent working-class organisations and fighting for their own demands. When the military finally moved against the Communists, the PKI had no alternative source of power to fall back on.
What the PKI Refused to Prepare For
The Inevitability of Armed Confrontation
The PKI leadership understood that the Indonesian National Armed Forces contained ‘anti-people’s elements’ but refused to draw the necessary conclusion: that armed confrontation with these forces was inevitable. The party believed that through proper constitutional procedures, parliamentary debate, and loyalty to Sukarno, it could gradually transform Indonesian society.
This was a profound misunderstanding of class politics. In colonial and semi-colonial countries where indigenous capitalism remains weak and subordinate to imperialism, the military cannot be neutral. It must serve one class or another. In Indonesia, the bourgeois-landlord state maintained its power through military force. The working class could only conquer state power by smashing this military apparatus.
Ernest Mandel, a central Fourth International leader at the time, analysed the defeat with clinical precision: ‘The PKI did not assimilate these lessons of history. Deeply affected by the ‘peaceful’ and ‘revisionist’ errors committed by their predecessors—the PKI leaders of the period of the ‘Madiun incidents’ of 1948—they wished at any cost to ‘stick with’ the Sukarno group representing the national bourgeoisie.’ The result was that ‘with a correct line, the PKI could have stimulated the mass struggle on the basis of their justified immediate demands in order to lead them to the conquest of power.’
The Question of Armed Preparation
In October 1965, when the military coup moved against the Communists, the PKI leadership discovered too late what any serious revolutionary party should have known: that the reactionary armed forces would not permit their destruction to be debated in parliament.
The party had three million members but zero military preparation. It had mass organisations among workers, peasants, and students, but these organisations had been disciplined to avoid confrontation with ‘national’ bourgeois authority. When the generals arrested and murdered PKI leaders in the streets, when the party’s press was shut down, when its offices were stormed, the masses looked to their party for direction. But the leadership had vanished, murdered or in hiding. No plans existed for armed resistance. No clandestine committees were activated. The party could do nothing.
T. Soedarso, an exiled PKI cadre who lived to analyse the defeat, offered this devastating assessment: ‘It is extremely unlikely, however, that the counterrevolutionists now in power in Djakarta will be able to stabilise the situation in the short length of time.’ He was correct. The armed forces faced rebellious peasants, underground cells of Communists, and potential working-class resistance. But the PKI had not organised for this possibility. It had spent years organising for parliamentary negotiation with a bourgeoisie that had already determined the party must be destroyed.
Contemporary Echoes: What Revolutionary Movements Repeat Today
The Temptation of ‘Democratic’ Shortcuts
The PKI’s disaster was not unique to 1965 Indonesia. It reflects a recurrent temptation within the international revolutionary movement: the belief that the bourgeois state can be conquered through electoral politics, constitutional reform, and patient accumulation of parliamentary seats.
Today’s left faces versions of this same trap. When left-wing parties achieve electoral success, the pressure to prove ‘responsible’ governance is intense. The argument runs: yes, revolutionary transformation is necessary eventually, but we must consolidate democratic gains first, avoid terrifying the bourgeoisie, work within existing institutions. The parallels to Sukarno’s ‘National Front’ are unmistakable.
In such situations, the revolutionary movement typically does precisely what the PKI did: subordinates working-class independence to multi-class coalitions, limits mass mobilisation to avoid ‘frightening off’ potential allies, transforms the party’s mass organisations into pressure groups for electoral strategy rather than schools for revolutionary consciousness, and postpones any serious preparation for confrontation with the state machine.
The Problem of ‘Stages’
The PKI’s adoption of two-stage theory was not an isolated error but reflected a broader pattern. Stalinist Communist parties worldwide had embraced variations of this theory: in China, Vietnam, Cuba, and elsewhere. The theory claimed to be ‘Marxist’ and ‘scientific,’ approved by Moscow, and applicable to all colonial and semi-colonial countries.
Yet the theory was fundamentally anti-Marxist. It contradicted Trotsky’s theory of permanent revolution, which argued that in dependent capitalist countries, the working class must lead the anti-imperialist revolution directly to socialist tasks. There could be no stable intermediate stage of ‘national democratic’ capitalism. The bourgeoisie was too weak and too compromised with imperialism to carry out democratic transformation consistently.
The PKI’s catastrophe vindicated permanent revolution. When the working class attempted to act independently, even within the constraints of the two-stage framework, the bourgeois state moved to crush it. The ‘national democratic stage’ lasted only as long as the party remained willing to subordinate itself to bourgeois leadership.
Contemporary revolutionary movements continue to debate these questions. Some groups still argue that particular countries are ‘not ready’ for working-class power, that a stage of democratic bourgeois rule must first be completed, that the party must limit its demands to what the ‘current stage’ permits. The Indonesian catastrophe shows where such arguments lead.
The International Consequences
Imperialism Gains Confidence; Revolution Retreats
The PKI’s defeat was not merely a tragedy for Indonesian workers. It had devastating international consequences. The Vietnam War, then intensifying, was profoundly affected. With the Indonesian revolution crushed, imperialism faced only a fractious international left. It gained confidence that it could crush communist movements through military force.
The United States recognised this immediately. American strategists understood that the elimination of the PKI and the consolidation of a military-backed regime in Indonesia removed a major obstacle to American strategic dominance in Southeast Asia. The war in Vietnam could continue. The region could be militarised. New bases could be established.
Conversely, the defeat demoralised communist and anti-imperialist movements globally. Colonial revolutionaries who had looked to Indonesia as an example were forced to confront the failure of the two-stage strategy in practice. The contradiction between revolutionary rhetoric and reformist practice could no longer be obscured.
What Would Have Been Different?
The Mandel-Soedarso Argument
The Fourth International’s analysis of the defeat, codified in statements by Ernest Mandel and Soedarso, identified not what the PKI should have wanted, but what it should have materially prepared for:
First, the working class must maintain complete independence from the national bourgeoisie. This does not mean refusing tactical alliances on specific questions. But the working class must have its own organisations, its own political leadership, its own independent voice. When the party says ‘yes’ to bourgeois leadership, it sentences itself to defeat when that leadership (inevitably) moves to consolidate class power.
Second, the revolutionary party must recognise that armed confrontation with the state is inevitable and prepare accordingly. This does not mean adventurism or premature insurrection. But it means maintaining clandestine organisational capacity, protecting leaders and cadres, training activists in security, and building armed cadres capable of defending the revolution when the state attacks.
Third, the party must build genuinely revolutionary mass organisations, not mere appendages of electoral strategy. Workers must be organised in autonomous committees capable of acting independently. Peasants must organise for land seizure and agricultural collectivisation. Students must develop consciousness of their role in the broader struggle. All these organisations must be framed around the question of working-class power, not accommodation with existing state structures.
Fourth, the revolutionary programme must combine national-democratic demands (land reform, national independence, democratic freedoms) with socialist tasks (workers’ control, nationalisation of monopoly capital, dictatorship of the proletariat). The theory of permanent revolution insists these cannot be separated. A genuine agrarian revolution in Indonesia required dispossessing not just foreign investors but also the landlord class itself—a task only the working class, leading the poor peasantry, could accomplish.
The Silences of Moscow and Peking
One aspect of the Indonesian catastrophe that remains historically remarkable is the studied silence with which Moscow and Peking responded. Both governments had backed Sukarno’s regime. Both had supported (or at minimum failed to criticise) the PKI’s two-stage strategy and its alliance with the ‘national’ bourgeoisie.
When the armed forces moved against the Communists in October 1965, neither the Kremlin nor Mao’s leadership offered serious analysis of the defeat. Moscow issued bland statements of sympathy while maintaining diplomatic relations with Sukarno’s successor. Peking, already in conflict with the Soviet Union, offered marginally sharper criticism but could not escape the fact that it too had backed Sukarno and accepted the PKI’s strategic line.
This silence was itself a political statement. It meant no serious examination of why the two-stage strategy had failed. It meant no confrontation with the theory itself. It meant revolutionary movements worldwide were left to draw their own lessons without guidance from the official Communist movement.
The Fourth International’s perspective was different. In March 1966, the United Secretariat of the Fourth International issued a statement on ‘The Lesson of Indonesia’ that called for serious international analysis. It demanded investigation into the fate of PKI leaders, support for Indonesian Communists in exile, and—crucially—systematic study of what had gone wrong. The Fourth International’s role was to help ensure that the next revolutionary wave learned the lessons of this defeat.
Contemporary Movements and the Indonesian Lesson
Who Repeats These Errors Today?
The organisational and strategic questions posed by Indonesia remain vital because they recur across multiple contemporary contexts. In each case, the revolutionary movement faces similar temptations and similar dangers.
When left-wing electoral projects win office—as has occurred with various parties across Latin America, Africa, Europe, and Asia—the pressure to ‘govern responsibly’ immediately emerges. The state apparatus cannot be reformed; it must be broken and replaced. Yet governing within capitalist structures requires constant compromise with capital. Revolutionary rhetoric gives way to technocratic management. Mass organisations become mobilised for electoral campaigns rather than revolutionary transformation.
The PKI faced a version of this in Sukarno’s ‘revolutionary democracy.’ Contemporary parties face it in the structures of liberal democracy, constitutional republicanism, and international legal frameworks. The form differs; the substance is the same: the working class is invited to subordinate itself to state structures that cannot be reformed into instruments of liberation.
Similarly, when particular national revolutions appear to be unfolding, the temptation to concentrate all forces on that single struggle—postponing the extension of working-class independence—recurs. The theory of ‘permanent revolution,’ once controversial, is now widely accepted in principle. Yet in practice, many revolutionary movements still operate as if stages must be completed before working-class power can be addressed.
The Question of Armed Preparation Today
The PKI’s lack of armed preparation was a catastrophic weakness. Yet raising this question today provokes intense controversy. Liberal critics immediately charge that any discussion of armed struggle represents ‘violence’ and ‘terrorism.’ Even some left-wing groups resist the question, arguing that ‘peaceful transition’ is possible or that armed preparation is premature.
The Indonesian catastrophe suggests a different assessment. When revolutionary movements seek to fundamentally transform society, they must recognise that the ruling class will use armed force to defend its interests. Refusing to prepare for this is not pacifism; it is abdication of responsibility to the masses. The working class has the right to defend its movements, its gains, and its revolutionary organisations against state violence.
This does not mean adventurism. It means serious organisational preparation: clandestine security measures, protection of leaders and cadres, armed self-defence organisations, and explicit refusal to allow the state monopoly on violence to go unchallenged. The PKI had none of this. When the state moved, it had no capacity to respond.
Conclusion: Learning and Moving Forward
Sixty years after the Indonesian catastrophe, the left confronts a world still shaped by the consequences. The revolution was defeated. Imperialism consolidated its dominance in Southeast Asia. The international working-class movement was demoralised. And yet the defeat was not inevitable. It resulted from identifiable strategic errors that can be analysed, understood, and avoided.
The PKI’s errors were not individual failings but reflected systematic problems in the Communist movement: the adoption of two-stage theory, the subordination of the working class to ‘national’ bourgeoisies, the refusal to prepare for armed confrontation, and the lack of serious ideological education for party members. Each of these can be identified and corrected in contemporary practice.
For contemporary revolutionary movements, the lesson is clear: working-class independence must be maintained at all times.
Multi-class alliances, built around transitional and democratic demands, must aim for the convergence of all struggles through the systematic promotion of democratic self-organization of the exploited and oppressed, achieved only when the working class stands at the head and maintains strict political independence from bourgeois and class-collaborationist forces, ultimately pointing toward the conquest of proletarian power.
Revolutionary parties must prepare materially for confrontation with the capitalist state, recognising that fundamental social transformation cannot occur through constitutional reform.
Revolutionary programs must combine democratic and transitional demands into a strategy of permanent revolution that leads directly to proletarian power through the creation of a workers’ government based on the self-organization of the exploited and oppressed.
The 1965 defeat in Indonesia was a tragedy for the Indonesian masses and for the world revolutionary movement. But it need not have been in vain. By studying its lessons seriously, by understanding what the PKI could have done differently, by recognising how these errors recur in contemporary movements, the international left can fight more effectively today. This is the task of revolutionary intelligence: not merely to record history, but to extract from it the strategic wisdom that enables the working class to win.