The Dutch also hoped that the presence of high-profile non-republican figures would provide political support.
[2][3] According to Ide Anak Agung Gde Agung, he had the idea of establishing a body from among the delegates at the conference to represent the federal states as a response to these efforts by van Mook to establish a state on terms favourable to the Dutch.
[5][6] In July, a BFO delegation led by chairman T. Bahrioen from East Sumatra, delivered the "Bandung Resolution" to Van Mook.
[9] More consultation followed, and on 14 December 1948, the Dutch government issued an Indonesian Interim Period Administrative Ordnance (Dutch: Besluit bewind Indonesië in overgangstijd), known as the BIO Decree, which laid down the form of the interim administration and the procedure for the establishment of the United States of Indonesia.
Despite the military success, including the capture of Yogyakarta, it triggered worldwide condemnation, and the Dutch were pressured to negotiate with the republicans.
This led to the 7 May 1949 Roem–van Roijen Agreement, at which the republicans agreed to join the BFO at the Round Table Conference in the Hague at which the Dutch would hand over power to the United States of Indonesia.
Talks began on 23 August 1949, and led to agreement for the "unconditional and complete transfer of sovereignty" of the former Dutch East Indies (Except for Western New Guinea) to the United States of Indonesia.