Pakistan's creation of the Ministry of Defence Production in September 1991 demonstrated a determination to move to a degree of self-sufficiency in armaments production. Pakistan began with virtually no military production capability, and, because of its limited economic means and lack of foreign markets, there is little prospect of the country developing industrial facilities that could cover its equipment needs. However, it has taken a series of partial steps in some of the most crucial fields and aspired to become self sufficient in such basic areas as aircraft overhaul and modernization and tank and helicopter sales. During the period of reliance on United States supply, there was little attention given to domestic production, but after the assistance cutoffs in 1965 and 1971, Pakistan -- with China's help -- set about expanding its facilities.The Defence Production Ministry has been responsible for promoting and coordinating a patchwork of military production facilities that have developed since independence. The oldest of these facilities is the Pakistan Ordnance Factory at Wah Cantonment, near Rawalpindi. The Heavy Industries at Taxila was established in 1971 as an equipment rebuilding facility, followed in 1973 by the Pakistan Aeronautical Complex at Kamra, north of Islamabad. The ministry also includes seven other specialized organizations devoted to research and development, production, and administration. Total personnel strength in 1993 was more than 50,000, including 2,600 professionals.