The top diplomats of South Korea, the United States and Japan will meet in the U.S. on Friday to discuss Korean Peninsula issues and ways to strengthen economic security cooperation, officials said. Foreign Minister Cho Hyun is set to hold trilateral talks with U.S. Secretary of State Marco Rubio and Japanese Foreign Minister Toshimitsu Motegi on the sidelines of the Group of 20 (G20) foreign ministers' meeting in Atlanta later in the day, according to the officials at Seoul's foreign ministry. The three ministers are expected to assess North Korea's latest missile launches and closer ties between Pyongyang and Beijing following North Korean leader Kim Jong-un's recent visit to China, and discuss ways to coordinate their responses to Pyongyang. Also on the table would be ways to encourage Pyongyang to return to dialogue, as the South Korean government has stressed its role as a "pacemaker" in efforts to resume talks between Washington and Pyongyang. Energy and economic security cooperation among the three nations is also expected to feature in the upcoming talks, the officials said. The t