The decision of U.S. President Donald Trump to drastically reduce joint military exercises with South Korea, invoke his "very good relationship" with Kim Jong-un, and quantify North Korea's nuclear weapons at fifty-seven has abruptly reopened a chapter of Asian diplomacy that seemed closed since 2019. At a time when Washington is concentrating resources on the conflict with Iran, the gesture seeks to open a channel of communication with a regime that has expanded its arsenal, tightened ties with Russia, and regained spheres of influence with China. Pyongyang, however, responded with the launch of a dozen short-range ballistic missiles and downplayed U.S. concessions, while Seoul observes with a mix of hope and alarm the potential weakening of allied deterrence. The result is a more unstable peninsula, where the search for short-term stability risks consolidating North Korea as a permanent nuclear power and eroding the trust of regional allies.
The relationship between Trump and Kim has once again taken center stage in U.S. foreign policy in East Asia with an intensity reminiscent of the years of the summits in Singapore and Hanoi. The president ordered Secretary of Defense Pete Hegseth to substantially reduce the Ulchi Freedom Shield exercises, cutting them from eleven to five days and scaling back their training components. Trump argued that the maneuvers were costly and sent an "inappropriate and hostile" signal to a country that, according to him, has been respectful since its return to power. At the same time, he publicly claimed his personal rapport with the North Korean leader and stated that he would meet with him before the end of the year, possibly during the APEC summit in Shenzhen. The statement regarding the fifty-seven nuclear weapons, made with unusual precision, underscored both the implicit recognition of a strategic reality and the willingness to manage it through personal dialogue.
Trump's real intentions combine elements of personal diplomacy, risk calculation, and longer-term geopolitical ambition. Analyst Kyung Suk Lee, in a study from 38 North, has noted that the U.S. president's attraction to Kim possesses a markedly personal component: the meeting may constitute an end in itself, beyond the concrete results in terms of denuclearization. Trump has repeatedly stated that his relationship with the North Korean leader prevented a war during his first term and that he maintains a unique understanding with him. This logic of leader diplomacy is now projected onto a more complex stage. The United States needs to avoid a simultaneous crisis on the Korean peninsula while part of its capabilities are committed in the Middle East. The reduction of exercises functions, in this sense, as a signal of détente aimed at diminishing the likelihood of a North Korean provocation that would force a diversion of resources.
Moreover, there is a strategic dimension linked to the power architecture in Northeast Asia. In recent years, North Korea has reduced its historical dependence on China through an increasingly close alliance with Russia. The sending of troops and munitions to Ukraine and the signing of a strategic partnership treaty with Moscow have granted Pyongyang a maneuvering margin that it previously did not possess. China reacted with Xi Jinping's visit to Pyongyang in June 2026, the first in seven years, aimed at regaining economic, diplomatic, and military influence. The absence of the denuclearization issue in the public statements from that summit was interpreted by Professor Ban Kil Joo of the National Diplomatic Academy of Korea as a possible de facto acceptance of North Korea as a nuclear power. In this context, a more fluid relationship between Washington and Pyongyang could seek to expand North Korea's autonomy margin, preventing the regime from being definitively incorporated into the China-Russia bloc and limiting its utility as a pressure instrument in a potential crisis surrounding Taiwan. It would not be a literal separation, but rather a dilution of exclusive dependence.
However, this strategy carries evident risks. The reduction of American presence and maneuvers may convey to Seoul the impression that its security has become a secondary variable. South Korean President Lee Jae Myung cautiously welcomed Trump's gesture, considering it an opportunity to overcome hostility and build peace on the peninsula. In a social media post, he stated that the decision reflected deep reflection on how to overcome confrontation. At the same time, the Seoul government insisted on the need to maintain a strong combined defense posture and to move toward greater military autonomy. The conservative opposition criticized the reduction of the exercises as a threat to deterrence, and analysts cited by various media warned that diminishing the maneuvers could affect the preparedness of allied forces and erode confidence in American commitment. Foreign Minister Cho Hyun acknowledged in Parliament that neither Seoul nor U.S. officials had received prior notice of the presidential order, which generated perplexity and reinforced doubts about the solidity of allied coordination.
Pyongyang's response has been unequivocal. A day after Trump stated that Kim had responded positively to his contacts and the reduction of the exercises was known, North Korea launched about ten short-range ballistic missiles from the vicinity of Pyongyang. Kim Yo Jong, the leader's sister and a key figure in the regime, downplayed the U.S. measure and denied the existence of high-level communications, stating that Washington's hostile policy remains unchanged. The launch, the third of the month, underscored that the regime does not interpret concessions as a structural change in U.S. posture, but rather as an attempt to gain legitimacy without delivering real concessions. The disparity between Trump's estimation—fifty-seven "very powerful" nuclear weapons—and that of South Korean Defense Minister Ahn Gyu-back—between eighty and one hundred twenty, according to research institutes—illustrates the difficulty of establishing a common dialogue basis. The Stockholm International Peace Research Institute places the arsenal at around sixty assembled warheads, with fissile material sufficient for at least thirty more, numbers close to those of the U.S. president but lower than broader South Korean assessments.
From a geopolitical perspective, the situation that is shaping up is of greater complexity and fewer incentives for complete denuclearization. Kim enters any potential negotiation with a larger arsenal, a privileged military relationship with Russia, and renewed ties with China. The experience of the conflict with Iran may have reinforced in Pyongyang the conviction that nuclear weapons constitute the best guarantee against regime change. Frank Aum, an analyst from 38 North, has noted that both Trump and Kim have a genuine interest in sitting back down to negotiate, although differences over denuclearization remain enormous. Victor Cha from Georgetown University has pointed out that the reduction of exercises is a concrete signal, distinct from mere statements of previous years, but warns that Washington's cards are worse than in 2018. Jenny Town, director of the 38 North program at the Stimson Center, interprets the decision as part of a broader effort to create diplomatic opportunities, although she recognizes the risks to allied preparedness.
The paradox is deep. Trump seeks to use his personal relationship to reduce the risk of conflict and, potentially, limit North Korea's dependence on China and Russia. At the same time, the strategy may end up tacitly accepting a nuclear North Korea, achieving a more stable peninsula in the short term at the cost of consolidating a reality that was attempted to be prevented for decades. The reduction of exercises functions as a diplomatic concession and as a risk management mechanism, but its success depends on Trump's ability to convince Kim that the United States is not preparing a military operation and, simultaneously, that Seoul and Tokyo do not perceive the alliance as being sacrificed in the name of a presidential relationship. In an environment marked by rivalry between the United States, China, and Russia, the Korean peninsula becomes a scenario where the snapshot of a new summit can change the atmosphere of the crisis, but where transforming that atmosphere into a lasting agreement remains the most arduous challenge. The history of previous summits demonstrates that the cameras can turn off without the weapons disappearing.
Adalberto Agozino holds a PhD in Political Science, is an International Analyst, and is a Professor at the University of Buenos Aires.
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