Thoughts on what North Korea might want from the international arms market if it ever got out from under major sanctions regimes:
North Korean weapons engineers have done remarkable work with remarkably little. Fortunately, North Korea has been largely cut off from the international arms market for a long time, even from suppliers such as China and Russia. While North Korean industry is not primitive, it cannot support the development of multiple modern military systems. South Korea, on the other hand, has taken great advantage of the international arms market, acquiring technology from foreign powers, defraying costs through joint projects, and exporting weapons in order to earn hard cash and create economies of scale.