In his first phone call with South Korean President Suk-yeol, newly minted Prime Minister Ishiba reaffirmed the importance of closely communicating between the two nations, including through shuttle diplomacy. The leaders also pledged to strengthen security cooperation with the United States in light of North Korea's continued nuclear and missile developments. President Yoon expressed hope for even closer relations between the two countries as they approach the 60th anniversary of their bilateral ties next year.