Former South Korean "comfort woman" Lee Yong-soo, who was forced to serve as a sex slave for Japanese troops during World War II, speaks during a demonstration demanding the Japanese government's formal apology near the Japanese embassy in Seoul on September 18, 2019. - South Korea on September 18 officially dropped Japan from its "white list" of trusted trade partners, the latest move in a bitter row stemming from Tokyo's use of forced labour during World War II. (Photo by Jung Yeon-je / AFP)