The Defense Industries Organization (DIO) is a conglomerate of companies run by the Islamic Republic of Iran whose function is to provide the Armed Forces with the necessary manufacturing capacity and technical abilities. In recent years, the DIO has attempted to become export-oriented, allowing Iran to become an exporter of weapons.
History
Prior to 1963, the Iranian military industry consisted of a number of independent factories. Iran's military industry was born under the last Shah of Iran, Mohammad Reza Pahlavi. In 1973, the Iran Electronics Industries (IEI) was founded to organize efforts to assemble and repair foreign-delivered weapons.[1][2] Most of Iran's weapons before the Islamic revolution were imported from the United States and Europe. Between 1971 and 1975, the Shah went on a buying spree, ordering $8 billion in weapons from the United States alone. This alarmed many in the U.S., which strengthened a 1968 law on arms exports in 1976 and renamed it the Arms Export Control Act. Still, the United States continued to sell large amounts of weapons to Iran until the 1979