Japan and South Korea on Saturday expressed their "serious concern" about Pyongyang's missile development and its deepening military cooperation with Moscow after North Korean troops began fighting in Russia's war against Ukraine.At their summit, Japanese Prime Minister Shigeru Ishiba and South Korean President Yoon Suk Yeol agreed on the need for the two nations to work together, and trilaterally with their common ally the United States to address such security issues, according to the Japanese government.Meeting on the fringes of the Asia-Pacific Economic Cooperation forum summit in Lima …READ FULL ARTICLE