Since the end of the Second World War, Japan’s aerospace and defence (A&D) industry has been significantly limited by restrictions on arms exports, which, in addition to prohibiting the sale of arms abroad, have also had the effect of hindering the integration of Japan’s defence and commercial aerospace sectors and preventing the country from developing a globally competitive defensive aerospace industry.

Research Industry of Economy, Trade & Industry, Transforming Japan's Aerospace and Defense Industry for the 21st Century, 2013