One-Unit was the title of a scheme launched by the federal government of Pakistan to merge the four provinces of West Pakistan into one homogenous unit, as a counterbalance against the numerical domination of the ethnic Bengalis of East Pakistan (now Bangladesh). The One Unit scheme was announced by Prime Minister Muhammad Ali Bogra on 22 November 1954. On 5 October 1955 Iskander Mirza (Acting Governor General of Pakistan) passed an order unifying all of West Pakistan in what became known as the 'One Unit Scheme'.