President Lee Jae Myung said Sunday reunification with North Korea remains South Korea's ultimate goal and a constitutional duty, vowing to pursue it through dialogue rather than unilateral action. Lee, in Johannesburg for the Group of 20 summit, made the remarks in a written interview with Turkey's Anadolu Agency, published ahead of his state visit to Ankara. "Reunification remains our ultimate goal and is not merely an ideal but a constitutional duty. Our government will not pursue