On 19 December 1948, the Dutch launched a second "Police Action" against the areas controlled by the Republic. Dutch forces captured the republican capital, Yogyakarta and detained President Sukarno. In protest, the Padundan cabinet, along with the cabinet of the largest federal state, the State of East Indonesia, resigned, to the embarrassment of the Dutch, who had planned a conference to discuss the form of the federal Indonesian state. Prime Minister Adil Poeradiredja refused to form a new cabinet, and its 6-member replacement was formed by Djumhana Wiriaatmadja. However, the new cabinet's anti-Dutch stance angered the Batavia administration, which threatened to arrest key members of the government and install a military government. Four members of the cabinet subsequently resigned, as did Djumhana on 28 January 1949. He then formed a cabinet more acceptable to the Dutch. In early March 1949, Prime Minister Djumhana was part of the Federal Consultative Assembly delegation, representing the non-Republican Indonesian states, that took part in negotiations with Indonesian president Sukarno and other senior officials on the island of Bangka, where Sukarno had been exiled by the Dutch. Both parties to these negotiations, together with the Dutch, then took part in the Dutch–Indonesian Round Table Conference in the Hague from August to November. This conference led to the Dutch transferring sovereignty to the United States of Indonesia, with Pasundan as one component of it, on 27 December.