South Korea is making its mark on global arms trade, with President Moon Jae-in shepherding large deals to export indigenous weapons systems during his recent visits to Australia and the Middle East.

The Asian country, which faces a constant security threat across the border from North Korea, is the world's ninth-largest arms exporter and has grabbed more than half of the market share for self-propelled artillery.

Moon's determination to promote South Korea's homegrown military hardware to the world was demonstrated in eye-catching fashion last October when he flew into a military exposition on the outskirts of Seoul in a domestically developed FA-50 aircraft.