The Indonesian National Revolution 1945 to 1949, including the Battle of Surabaya, Dutch police actions, the Renville and Linggadjati agreements, the Madiun Affair, and the transfer of sovereignty at the Round Table Conference

What this dot point is asking

NESA expects you to explain the four-year struggle that turned the 17 August 1945 proclamation into an internationally recognised state. Strong answers integrate the military narrative (Surabaya, two Dutch police actions, the guerrilla phase), the diplomatic narrative (Linggadjati, Renville, Roem-Royen, the Round Table Conference), and the Cold War context (the Madiun Affair, US Marshall Plan pressure).

The answer

The Battle of Surabaya, November 1945

British forces, charged with disarming Japanese troops, landed at Surabaya on 25 October 1945. British Brigadier A.W.S. Mallaby was killed on 30 October 1945 in murky circumstances. The British 5th Indian Division responded with an ultimatum on 9 November 1945; on 10 November 1945 a full-scale British assault on the city began.

Bung Tomo's radio broadcasts called on the people of Surabaya to fight. The battle ran from 10 to 20 November 1945. Over 6,000 Indonesians died (some estimates run to 16,000), against British losses of around 600. The city fell, but the battle had three consequences: it gave the Republic a national martyrdom (10 November is Heroes Day, Hari Pahlawan); it convinced British and Australian opinion that re-imposing Dutch rule by force would be costly; and it produced a TNI that could fight a modern army.

The Linggadjati Agreement, November 1946

The Dutch Lieutenant Governor-General Hubertus van Mook accepted negotiations. Prime Minister Sutan Sjahrir negotiated for the Republic. The Linggadjati Agreement was initialled on 15 November 1946 and ratified on 25 March 1947.

The Dutch recognised the Republic's de facto authority over Java, Madura and Sumatra. The two parties agreed to form a federal United States of Indonesia by 1 January 1949 in union with the Dutch crown. The agreement was deeply unpopular on both sides; the Dutch parliament added unilateral interpretations, and Republican forces in the regions resisted federal arrangements that diluted Republican authority.

The First Dutch Police Action, July to August 1947

On 20 July 1947 the Dutch launched Operatie Product, presented as a "police action" to restore law and order. Around 100,000 Dutch troops attacked from Republican-controlled territory in Java and Sumatra, capturing plantations, oil installations, and major cities outside Yogyakarta. The Republic retained Yogyakarta as its capital under President Sukarno.

The United Nations Security Council, on 1 August 1947, called for a ceasefire and established the Good Offices Committee (US, Belgium, Australia) to mediate. International recognition of the Republic, especially Australian support under H.V. Evatt and the Chifley government, was a turning point.

The Renville Agreement, January 1948

Negotiated aboard the US Navy ship Renville in Jakarta harbour, the agreement was signed on 17 January 1948. The Dutch retained the territory taken in the police action. The Republic accepted the Van Mook Line as a ceasefire line. Republican forces (the Siliwangi Division) were forced to evacuate to Republican-held territory.

The agreement was disastrous for the Republic on the ground but kept the diplomatic process moving. Prime Minister Amir Sjarifuddin, who had negotiated and signed, resigned days later. Hatta took over as Prime Minister.

The Madiun Affair, September 1948

The Indonesian Communist Party (PKI) under Musso (returned from Moscow in August 1948) launched a rebellion at Madiun in East Java on 18 September 1948. Musso proclaimed a Soviet Republic of Indonesia. Hatta and Sukarno responded with force; the Republican army under Colonel Gatot Subroto and Lieutenant Colonel Nasution crushed the uprising within three weeks. Musso was killed on 31 October 1948. Amir Sjarifuddin was captured and executed on 19 December 1948.

The Madiun Affair had two strategic effects. It removed the PKI as a competing power within the Republic for over a decade. And it transformed Western perceptions: the Republic was demonstrably anti-Communist, a viable partner for the United States in the developing Cold War.

The Second Dutch Police Action, December 1948

The Dutch, judging the Republic weak after Madiun, launched Operatie Kraai on 19 December 1948. Dutch paratroopers seized Yogyakarta the same day. Sukarno, Hatta, Sjahrir and most of the cabinet allowed themselves to be captured and exiled to Bangka. President Sukarno empowered Sjafruddin Prawiranegara to head an Emergency Government of the Republic of Indonesia (PDRI) from Bukittinggi in Sumatra, ensuring constitutional continuity.

The TNI under Sudirman, despite tuberculosis, took to guerrilla war. The General Offensive on Yogyakarta (Serangan Umum 1 Maret 1949), planned by Sultan Hamengkubuwono IX and led on the ground by Lieutenant Colonel Suharto, captured the city for six hours on 1 March 1949. Politically, it proved to international observers that the TNI remained intact.

American pressure and Roem-Royen

The Second Police Action triggered international outrage. The UN Security Council passed Resolution 67 on 28 January 1949, demanding the restoration of the Republic's government and a transfer of sovereignty by 1 July 1950. The United States, decisive on Marshall Plan disbursements to the Netherlands (around $400 million in 1948 to 1949 alone), threatened to suspend aid.

Senator Tom Connally and Acting Secretary of State Robert Lovett pressed The Hague. The Roem-Van Royen Statement (7 May 1949) committed the Dutch to return Yogyakarta and to attend a Round Table Conference. On 6 July 1949 Sukarno and Hatta returned to Yogyakarta.

The Round Table Conference, August to November 1949

The Round Table Conference at The Hague ran from 23 August to 2 November 1949. The Indonesian delegation was led by Hatta; the Dutch by Foreign Minister D.U. Stikker. The conference produced three sets of agreements.

The Dutch recognised Indonesian sovereignty over the territory of the former Netherlands East Indies excluding West New Guinea, whose status would be negotiated within a year. Indonesia would assume 4.3 billion guilders of Dutch colonial debt (a figure reduced by negotiation from an initial 6.5 billion). A Netherlands-Indonesian Union was established as a loose constitutional link to the Dutch crown.

The transfer of sovereignty took place on 27 December 1949. Queen Juliana signed the act in Amsterdam; Hatta accepted it. Sukarno entered Jakarta on 28 December 1949. The Republic was internationally recognised.

Timeline

Historiography

Anthony Reid (The Indonesian National Revolution, 1974) is the standard account. He emphasises the social revolution within the political revolution: aristocrats, Chinese, and Eurasian populations all had to be accommodated within the new Republic.

George Kahin (Nationalism and Revolution in Indonesia, 1952) was on the ground in 1948 to 1949 and provides the canonical Western contemporary account. He treats American pressure as decisive at the diplomatic level.

Adrian Vickers (A History of Modern Indonesia, 2013) stresses the cost: perhaps 100,000 Indonesians dead in the revolution, and the legacy of Republican-versus-federalist tension that would shape the 1950s.

Robert Cribb (Gangsters and Revolutionaries: The Jakarta People's Militia, 1991) shows that the revolution was as much a social and criminal upheaval as a political one.

How to read a source on this topic

First, distinguish between "police action" and "war." The Dutch called the 1947 and 1948 operations "police actions" because that framing avoided treating the Republic as a state. Sources should be read against this rhetorical purpose.

Second, note the dating of Heroes Day. The Republic chose 10 November (Surabaya) as the founding military date, not 17 August. The revolution, not the proclamation, is the source of the army's claim to political authority.

Third, weigh Madiun. The Republic did not become recognised by accident in 1949; it became recognised because it had proven, in September 1948, that it would crush a Communist rising on its own. This is the single most important Cold War fact in the period.

Common exam traps

Treating the revolution as a Sukarno achievement. It was as much Sjahrir's, Hatta's, Sudirman's and Sjafruddin Prawiranegara's. Sukarno spent the second half of 1948 and the first half of 1949 in Dutch internment.

Confusing the Linggadjati and Renville agreements. Linggadjati (1946) recognised Republican territory in Java, Madura, Sumatra. Renville (1948) shrank that territory along the Van Mook Line.

Forgetting West New Guinea. It was not transferred in 1949. The dispute would continue to 1962 to 1963 and shape Sukarno's foreign policy.

Misdating the transfer of sovereignty. It was 27 December 1949, not 17 August. The Republic celebrates 17 August (proklamasi) as Independence Day for ideological reasons.

In one sentence

The Indonesian National Revolution of 1945 to 1949, fought through the Battle of Surabaya, two Dutch police actions, and a guerrilla war led by Sudirman and Suharto, and negotiated through Linggadjati, Renville, the Madiun Affair, Roem-Royen, and the Round Table Conference, secured the transfer of sovereignty on 27 December 1949 and made the 17 August 1945 proclamation an internationally recognised fact.