At a sprawling South Korean arms factory, a high-tech production line of robots and super-skilled workers were rapidly churning out weapons Friday that could, eventually, play a role in Ukraine. Since the Russian invasion last year, the Hanwha Aerospace factory in the southern city of Changwon has expanded production capacity three times, workers told AFP, as South Korea ramps up arms exports while traditional behemoths like the United States struggle with production shortages. IMAGES AND SOUNDBITES