The first formation of the Turkish Defense Industry in History dates back to the 14th century. Our Defense Industry, which was in a strong position until the 17th century, lost its power after the 1st World War and we were left out of the developments in Europe in the 18th century. II. The activities in the field of defense industry, which started in the first years of the Republic period after the World War II, became foreign-dependent with the aid received from the USA due to the economic situation and political reasons. Concrete steps were taken to establish the National Defense Industry in the 1970s. With the development plans initiated in the 1980s and the establishment of the Undersecretariat of Defense Industry, necessary steps were taken to nationalize the weapons and equipment used. Our national defense industry has mobilized many sectors in parallel with the recent developments. One of the most important of these is the injection mold industry.