As a consequence few of those elected won a majority of the votes cast. The non-Marxist Umma Party captured 75 out of 158 parliamentary seats while its NUP ally took 52 of the remainder. The two parties formed a coalition cabinet in June headed by Umma leader Muhammad Ahmad Mahjub, whereas Azhari, the NUP leader, became the Supreme Commission's permanent president and chief of state. The Mahjub government had two goals: progress toward solving the southern problem and the removal of communists from positions of power. The army launched a major offensive to crush the rebellion and in the process augmented its reputation for brutality among the southerners. Many southerners reported government atrocities against civilians, especially at Juba and Wau. Sudanese army troops also burned churches and huts, closed schools, destroyed crops and looted cattle. To achieve his second objective, Mahjub succeeded in having parliament approve a decree that abolished the SCP and deprived the eleven communists of their seats. By October 1965, the Umma-NUP coalition had collapsed owing to a disagreement over whether Mahjub, as prime minister, or Azhari, as president, should conduct Sudan's foreign relations. Mahjub continued in office for another eight months but resigned in July 1966 after a parliamentary vote of censure, which split Umma. A traditional wing led by Mahjub, under the Imam Al Hadi, al Mahjub's spiritual leadership, opposed the party's majority. The latter group professed loyalty to the Imam's nephew, the younger Sadiq al Mahdi, who was the Umma's official leader and who rejected religious sectarianism. Sadiq became prime minister with backing from his own Umma wing and from NUP allies. The Sadiq al Mahdi government, supported by a sizeable parliamentary majority, sought to reduce regional disparities by organizing economic development. Sadiq al Mahdi also planned to use his personal rapport with southern leaders to engineer a peace agreement with the insurgents. He proposed to replace the Supreme Commission with a president and a southern vice president calling for approval of autonomy for the southern provinces. The educated elite and segments of the army opposed Sadiq al Mahdi because of his gradualist approach to Sudan's political, economic, and social problems. Leftist student organizations and the trade unions demanded the creation of a socialist state. Their resentment of Sadiq increased when he refused to honour a Supreme Court ruling that overturned legislation banning the SCP and ousting communists elected to parliamentary seats. In December