1947
- February: Pro-Republic Datu of Supa is killed by Westerling’s troops.
- February: 'Linggadjati Agreement' finally ratified by the KNIP after Hatta and Sukarno threaten to resign if it was not accepted.
- June: Amir Sjarifuddin and other Left Wing of KNIP withdraw support for Sjahrir’s Prime Minstership. Sjahrir would go abroad to represent the Republic at the UN.
- July: Amir Sjarifuddin becomes Prime Minister of the Republic.
- May: A separate state of West Kalimantan is established under Sultan Abdul Hamid II of Pontianak. Sjahrir protests at the unilateral creation of the state is ineffectual.
- May: Dutch decide that they must attack Republic directly believing they can conquer Republican-held cities within two weeks, and all Republican territory within 6 months.
- 20 July: At midnight, Dutch launch a major military offensive, which they refer to as a 'police action'. Major columns swept out from Jakarta and Bandung to occupy West Java and from Surabaya to occupy Madura and the Eastern Salient. Smaller troop movements secure the Semarang area. The Dutch thus gain control of all deep-water ports in Java, and in Sumatra control is secured over plantations around Medan, oil and coal installations around Palembang and the Padang area. Republican forces retreat amidst confusion destroying what they can, and carrying out last minute acts of revenge; Chinese in West Java and imprisoned aristocrats in East Sumatra were murdered. The Dutch originally intend to carry on to Yogyakarta to install a more amendable Republican Government. American and British protests at the military action, however, stop the Dutch from complete conquest of the Republic. Australian and Indian, and eventually American representation in the United Nations raises the profile of the independence cause.
- 4 August: The Dutch and Sukarno order a UN-demanded ceasefire
- August: UN allow Sjahrir to speak before the UN, but do not allow representatives from Dutch-held areas.
- August: Dutch continue mopping up actions operations within their advance points where numerous Republican fighters remain, including the Siliwangi Division in West Java.
- September: The Dutch create a South Sumatra state.
- October: UN Good Offices Committee with American, Australian and Belgian representatives is established to assist Dutch-Republican negotiations for a new ceasefire.
- November: The Dutch create an East Java state.
- December: The Dutch create an East Sumatra state.
Read more about this topic: Timeline Of The Indonesian National Revolution