Suhrawardy also verbally authorised the leasing the Inter-Services Intelligence's (ISI) secret installation at Peshawar Air Station to the CIA to conduct operations in the Soviet Union. Differences in East Pakistan further encouraged Baloch separatism, and in an attempt to intimidate the communists in East Pakistan President Mirza initiated massive arrests of communists and party workers of the Awami League, which damaged the image of West Pakistan in the east. The western contingent's lawmakers determinately followed the idea of a westernised Parliamentary form of democracy, while East Pakistan opted for becoming a socialist state. The One Unit Program and the centralisation of the national economy on the Soviet model was met with great hostility and resistance in West Pakistan. The eastern contingent's economy was rapidly centralised by Suhrawardy's government. Personal problems grew between the two Bengali leaders, further damaging the unity of the country and causing Suhrawardy to lose his authority in his own party to the growing influence of cleric Maulana Bhashani. Resigning under a threat of dismissal by Mirza, Suhrawardy was succeeded by I. I. Chundrigar in 1957. Within two months Chundrigar was dismissed. He was followed by Sir Feroz Noon, who proved to be an incapable prime minister. Public support for the Muslim League led by Nurul Amin began to threaten President Mirza who was becoming unpopular, especially in West Pakistan. In less than two years, Mirza dismissed four elected prime ministers, and was increasingly under pressure to call new elections in 1958. In October 1958 President Iskandar Mirza issued orders for a massive mobilisation of the Pakistan Armed Forces and appointed Chief of Army Staff General Ayub Khan as Commander-in-chief. President Mirza declared a state of emergency, imposed martial law, suspended the constitution, and dissolved both the socialist government in East Pakistan and the parliamentary government in West Pakistan. General Ayub Khan was Chief Martial Law Administrator, with authority throughout the country. Within two weeks President Mirza attempted to dismiss Khan, but the move backfired and President Mirza was relieved of the presidency and exiled to London. General Khan promoted himself to the rank of a five-star field marshal and assumed the presidency. He was succeeded as chief of army staff by General Muhammad Musa. Khan named a new civil-military government under him. The parliamentary system came to an end in 1958, following the imposition of martial law. Tales of corruption in the civil bureaucracy and public administration had maligned the democratic process in the country and the public were supportive of the actions taken by General Khan.