Regional Cooperation for Development (RCD) or Organization for Regional Cooperation and Development (ORCD)[1] was multi-governmental organization which was originally established on the 21st of July 1964 by Iran, Pakistan and Turkey, regional members of the Central Treaty Organization (CENTO), to allow socio-economic development of the member states. Its headquarters was in Tehran, Iran.[2] In 1979, this organization was dissolved. It was replaced by Economic Cooperation Organization (ECO) in 1985. Seven new members were added: Afghanistan, Azerbaijan, Kazakhstan, Kyrgyzstan, Uzbekistan, Tajikistan and Turkmenistan. Under this organization Pakistan along with aid from Iran was able to build the 813 km long N-25 highway. Several other developments also took place in the member countries who were able to get and provide financial aid to each other.