Ministry of Defence (Pakistan) of the army, navy and air force in Pakistan until 1956. In December 1959, the federal capital shifted temporarily to Rawalpindi, while plans for Islamabad were drawn up by then-General Ayub Khan's military government. The proximity of the Army Headquarters in Rawalpindi played a major role in the decision to relocate the capital. In March 1972, President Zulfiqar Ali Bhutto in response to criticism over the difficulties in inter-service coordination in previous wars decreed that all service HQs were to move to Islamabad. The Navy was the first to comply, with Naval Headquarters moving from Karachi to Sector E9 Islamabad
Islamabad Capital Territory I-8 to I-18. With the exception of I-8, which is a well-developed residential area, these sectors are primarily part of the industrial zone. Currently two sub-sectors of I-9 and one sub-sector of I-10 are used as industrial areas. CDA is planning to set up Islamabad Railway Station in Sector I-18 and Industrial City in sector I-17. Zone III consists primarily of the Margalla Hills and Margalla Hills National Park. Rawal Lake is in this zone. Zone IV and V consist of Islamabad Park, and rural areas of the city. The Soan River flows into the city through Zone V. While