OSAKA, Japan — The leaders of Korea and Japan showed commitment to making progress in addressing historical tragedies through humanitarian cooperation, National Security Adviser Wi Sung-lac said Wednesday. Wi said the historical issue was one of key agenda items at the summit between President Lee Jae Myung and Japanese Prime Minister Takaichi, held one day earlier. According to Wi, the issue of identifying remains from the 1942 flooding accident at the Josei coal mine in Ube, Japan, which killed 183 laborers including 136 Koreans, was first proposed by the Japanese prime minister during the leaders’ one-on-one talks. Historical issues such as the forced labor of Koreans during Japan's 1910-45 colonial rule of Korea have long been points of contention between the two countries. It has been rare for a Japanese leader to be the first to raise the issues. “The two sides agreed to cooperate at the relevant authorities’ level to conduct DNA testing to identify remains discovered last August at the site of the 1942 Josei coal mine flooding,” Wi said. “This was the first issue Prime