The development, sale and use of ballistic missiles with ranges from less than a hundred kilometres to several thousand kilometres. These weapons can equipped with nuclear, chemical, biological or conventional war heads.
The major producing nations of missile systems at the end of the 1980s were the USA, Russia, China, Brazil and France. In September 1989, at least 22 Third World nations were trying to buy or build ballistic missiles. Many had succeeded. Among the nations building, buying, attempting to acquire missiles or have advanced aerospace industries are: