Agency for Defense Development was established in August 1970 under the banner of the self-reliable defense. ADD is the one and only national agency for R&D in defense technology contributing to enforcing the national defense, to improving the national R&D capacity. and to fostering the domestic industry. It seemed impossible to manufacture even the basic weapons when it was established, but it succeeded in domestic development of the most advanced weapon systems and reached to the 10th world-level in the defense technology.