Parti Pesaka Bumiputera Bersatu (PBB; ) is a right-wing political party in Malaysia. It is currently the largest political party in Sarawak. Parti Pesaka Bumiputera Bersatu was formed from the combination of three parties in Sarawak; Parti Negara Sarawak, Barisan Rakyat Jati Sarawak and Parti Pesaka Anak Sarawak. The formation of the party was for the purpose of the improvement of the livelihood and protect the rights of the Bumiputera in many fields such as politics, economy and social. Formerly a part of Semenanjung-based coalition Barisan Nasional (BN), following the defeat of BN in the 2018 general election and in the aftermath of a meeting between all Sarawak-based BN coalition parties on 12 June 2018, PBB left the coalition to form a new Sarawak-based coalition, Sarawak Parties Alliance. The meaning of "Bumiputera" Bumiputera is a Malaysian political term and translates to son of earth. Being mentioned in the party's name, this directly relates to the ethnic groups that are seen as native to the state of Sarawak. Members of the party are solely of Sarawak Bumiputera ethnicity. In article 161a of the Federal Constitution of Malaysia, 21 ethnic groups are classified as "natives of Sarawak", among these are the Ibans, Bidayuhs, Melanaus, Orang Ulus and several other Dayak people, as well as local Muslim-Malays of Sarawak. Predecessors Parti Negara Sarawak (PANAS) PANAS which was formed on 9 April 1960 by Datu Patinggi Abang Haji Mustapha, was the second political party to be formed after Sarawak United People's Party. Barisan Ra'ayat Jati Sarawak (BARJASA) BARJASA was formed on 4 December 1961 by Tuanku Bujang Tuanku Othman. Abdul Rahman Ya'kub and Abdul Taib Mahmud were among the earliest members of the party. Parti Pesaka Anak Sarawak (PESAKA) Parti Pesaka Anak Sarawak was formed in Sibu in August 1962 to cater for the Ibans of Batang Rajang. Its promoters refused to join the Sarawak National Party, which they claimed only catered for Ibans from Saribas. Among the initiators of the party were Penghulu Masam Anak Radin, Pengarah Banyang, Penghulu Chundi Anak Resa and Penghulu Umpau. Temenggong Jugah, Temenggong Oyong Lawai Jau and Jonathan Bangau joined later. While Jugah and Oyong Lawai Jau were incipiently members of PANAS, Bangau was from SUPP. Other Penghulus from other divisions such as Penghulu Tawi Sli (Second Division) and Penghulu Abok Anak Jalin (Bintulu) also joined PESAKA. PESAKA was therefore known as the Penghulus’ Party. However, the person