Japan's geopolitical relationships have taken center stage as both South Korea and Japan navigate the turmoil of regional tensions and international diplomacy, especially amid the backdrop of the recent G7 summit breakdown.
On March 1, 2025, during a government ceremony commemorated the 1919 independence movement against Japan's colonial rule, South Korea's acting president, Choi Sang Mok, expressed hope for renewed bilateral relations with Japan. This year marks the 60th anniversary of diplomatic normalization between the two countries, and Choi underscored the importance of addressing historical grievances. He stated, "The two countries can heal the painful wounds of the past together and open a new chapter in their relationship," according to Kyodo news.
Choi acknowledged the ups and downs of South Korea-Japan relations, especially the fallout from the Supreme Court ruling requiring Japanese companies to compensate South Korean plaintiffs for forced labor during Japan's colonial rule from 1910 to 1945. The tensions have resulted from differing perspectives on their historic responsibilities. While South Korea seeks reparations, Japan has insisted these issues were "completely and finally" resolved under the 1965 bilateral agreement.
The backdrop of these sentiments becomes even more complex as North Korea continues its provocative actions, which pose grave threats to stability on the Korean Peninsula and throughout Northeast Asia. Choi affirmed the need for military readiness and cooperation with the South Korea-U.S. alliance to deter any threats posed by North Korea.
Meanwhile, Japan's Prime Minister Shigeru Ishiba commented on rising tensions at the G7 summit before the reported emotional exchange between U.S. President Donald Trump and Ukrainian President Volodymyr Zelenskyy. Ishiba mentioned, "It was surprising development and rather emotional exchange. I would like to make efforts to unite G7 nations so as not to divide the international community," as reported by the Yomiuri Shimbun.
Ishiba's remarks indicate concerns about the potential fracturing of international relations, particularly among the G7 nations, as the group collectively addresses myriad security threats, including the situation with North Korea and their respective responses to China's military assertiveness.
Japan's recent military maneuvers reflect these geopolitical concerns. A destroyer from the Japan Maritime Self-Defense Force (MSDF), the Akizuki, recently undertook passage through the Taiwan Strait, asserting Japan's position amid growing Chinese military activity. Reportedly, the destroyer participated in joint drills with U.S., Australian, and Philippine vessels, underscoring Japan’s intent to bolster its military posture and promote regional security.
Separately, Japan's Ground Self-Defense Force and the U.S. Marine Corps conducted joint exercises aimed at defending remote Japanese islands, with the aim to strengthen Japan's defense capabilities against any expansionist threats. Major General Kitajima Hajime pointed out the significance of these drills, stating, "Strengthening the defense capabilities of remote islands is an urgent issue as such capabilities will deter others from invading the islands and prevent war from occurring."
He added, "Through our combined capabilities, we provide deterrence to all of threats in this region," indicating the importance of collaborative military efforts to secure regional stability.
These sentiments from both South Korea and Japan reflect broader dynamics playing out on the global stage, particularly when concerns about North Korean provocations and China’s assertive policies are considered. Diplomatic efforts will likely continue to seek pathways to cooperation, balancing between historical resolutions and the pressing need for security.
With the interplay of these factors, South Korea and Japan's relationship is poised either for renewal or strain. It remains to be seen how both countries will navigate their shared past to forge stronger ties and collaborate against common foes, all against the backdrop of complicated interactions with regional powers.
Given these developments, South Korea and Japan's diplomatic future will be closely watched, as the stakes are high not only for bilateral relations but also for broader regional stability and international cooperation.