The party was established in February 1967 by Robert Peliza, a former member of the Association for the Advancement of Civil Rights (AACR), and called full integration with the United Kingdom, including electing MPs to the British Parliament.
[1] In the 1969 elections the AACR emerged as the largest party with seven of the 15 seats in the House of Assembly, with the IWBP winning five and the Isola Group three.
[2] After the defection of an Isola Group member, Peliza dissolved the House of Assembly in June 1972 and called early elections.
A delegation of the Constitution Committee, comprising Joshua Hassan and Maurice Xiberras visited London in June 1976, but were unable to convince the United Kingdom Government which, in response, issued a memorandum rejecting the proposals.
[1] The AACR won eight seats (with a personal vote of 75.3% for its leader Hassan) and returned to power, although Xiberras was elected as an independent.