South Korea's new president, Lee Jae-myung, aims to restart talks with North Korea to secure peace on the Korean Peninsula while addressing military threats with strong deterrence. He emphasizes the importance of the South Korea-US alliance and seeks to enhance trilateral cooperation with Japan. Lee faces challenges such as a slowing economy and North Korea's military ties with Russia, which complicate the geopolitical landscape. He also plans to investigate the previous administration's actions and promote national unity.