SEOUL (Reuters) -- South Korea held a memorial event in Japan on Monday for its laborers forced to work at a controversial mine during World War II, after boycotting one organized by Tokyo, highlighting lingering sensitivities in ties between the neighbors.
Both key U.S. regional allies, Seoul and Tokyo have seen ties generally improve in recent years, as they sought to put aside acrimonious diplomatic and trade disputes tied to Japan's 1910-45 colonization of the Korean Peninsula.
