Country Report: South Korea (August 2025)

The summer of 2025 marked a pivotal juncture for South Korea’s foreign policy, as shifting great-power dynamics and intensifying bloc rivalries tested Seoul’s diplomatic agility. Alliance management with the United States remained at the forefront, yet it unfolded under the shadow of Trump’s tariff threats, cancelled visits, and a high-stakes summit in Washington. At the same time, trilateral cooperation with Japan deepened in visible ways, even as domestic debates over historical grievances persisted. Meanwhile, the parallel consolidation of the North Korea–China–Russia axis underscored the risks of a hardening geopolitical divide, sharpening questions about how Seoul should balance between alliance dependence and strategic autonomy. Against this backdrop, the developments of July and August 2025 shed light on the competing pressures shaping South Korea’s strategic posture.

ROK-US Relations: Visit Cancellation and Tariff Outcome

On July 3, it was confirmed that US Secretary of State Marco Rubio’s planned visit to South Korea had been canceled. Rubio had been scheduled to visit Seoul on July 8–9 for a courtesy meeting with President Lee Jae Myung, but the State Department notified the South Korean government just five days before the trip that, due to local circumstances, the visit would not go ahead.
The decision, communicated only five days prior, set off competing narratives in South Korea’s domestic media. Conservative outlets cast the cancellation as another troubling sign for the alliance, emphasizing the absence of a summit date and now a high-level visit scrapped. Progressive outlets countered, citing Japanese reporting that linked Rubio’s revised schedule to preparations for forthcoming Trump–Netanyahu talks, framing the decision as a matter of Middle East prioritization rather than a Korea-specific slight.
Conservative reporting in Korea immediately treated the cancellation as a barometer of alliance health: no summit date on the books, and now a high-level visit canceled.¹ Progressive coverage pushed back on that interpretation. A news report by the progressive news outlet Hankyeoreh drew on Japanese reporting about Rubio’s schedule around the forthcoming Trump–Netanyahu talks in the United States and framed the decision as simple prioritization of an intensifying Middle East docket rather than a Korea-specific snub.²
Seoul quickly moved to tamp down speculation. National Security Advisor Wi Sung-rak issued a written briefing stating that reports claiming “the US side refused the meeting, resulting in the cancellation of the talks with Secretary of State and National Security Advisor Rubio” were false. He emphasized that such reports not only damage the reputations of both himself and Advisor Rubio but could also negatively affect trust between South Korea and the United States during a sensitive stage of negotiations.
Shortly thereafter, on July 8, Wi met Rubio for ROK-US security talks, where they held in-depth discussions on ways to advance bilateral relations, including high-level exchanges. Wi proposed a package negotiation covering trade, investment, procurement, and security, and the presidential office announced that the US side expressed agreement with the idea.³
The larger context was dominated by President Trump’s tariff threat. On the 7th (local time), US President Donald Trump claimed that trade relations with South Korea are not reciprocal and announced that, starting August 1, a 25 percent reciprocal tariff would be imposed on all Korean products.⁴ Originally set to take effect on the 9th, the tariff rate of 25 percent remains unchanged, but the implementation date has been pushed back. This move appeared less about enforcing the tariff rate itself than about giving both sides more time to negotiate, as the Trump administration has judged South Korea to be engaging sincerely in trade talks.
By July 30-31, South Korea and the United States reached a last-minute tariff compromise, stepping back from a threatened 25 percent mutual levy to a 15 percent rate. In Washington, President Trump packaged the announcement with two marquee add-ons: a headline figure of $350 billion in future Korean investment in the United States and a commitment to purchase $100 billion of US LNG. In Seoul, President Lee cast the outcome as “getting past a major hurdle.”
Media framing again diverged. Conservative outlets like JoongAng Ilbo characterized the deal as a partial success: the worst-case 25 percent shock was avoided, Korea achieved parity with Japan and the EU, and no additional agricultural concessions were made. Yet conservative commentators flagged structural vulnerabilities: interpretive ambiguities in US investment-return claims, erosion of Korea’s auto advantage at a critical EV transition juncture, risks of shipbuilding capacity flight to the U.S., and the contradiction of demanding firms expand abroad while tightening regulatory and tax burdens at home.⁵
However, the op-ed continued to argue that the outcome should not be overstated and raised several concerns. The first concern is interpretive ambiguity: US statements that “90 percent” of fund returns accrue stateside invite disputes over how “returns” are defined, how capital calls are staged, who holds governance levers, and when cash actually moves. A second concern is strategic erosion: autos have gone from KORUS-protected zero to 15 percent, erasing Korea’s margin over Japan and Europe and potentially throttling a flagship industry at precisely the wrong time in the EV transition. A third concern is capacity flight: the United States’ push to rebuild shipbuilding, backed by a mooted $150 billion program, could drain Korean talent and production bandwidth across the Pacific. Finally, come domestic contradictions: if the state wants firms to scale US investment to shield the macroeconomy from tariff risk, tightening the corporate-tax screw and telegraphing heavier governance rules at home creates a perverse two-front burden—expand abroad while paying more to stay.
Progressive outlets such as Hankyeoreh focused less on tactical brinkmanship and more on the strategic lesson: the collapse of KORUS as a shield against tariff politics. Seoul’s failed attempt to argue for a preferential 12.5 percent rate underscored, in their view, that legal frameworks are yielding to transactional deals. From this perspective, the rational response is not clinging to past guarantees but diversifying markets, accelerating CPTPP accession, and pursuing targeted FTAs and supply-chain pacts.⁶
Another progressive article from Hankyeoreh also highlights the behind-the-scenes efforts that led to the last-minute breakthrough in the Korea–US tariff negotiations. It stresses the intense preparation of the Korean delegation—officials even role-playing as Trump to anticipate his negotiating style—and President Lee Jae Myung’s hands-on management, from remote situation briefings to a 24-hour reporting chain as the deal came to a close.⁷

ROK-US Summit

The first South Korea–US summit between President Lee Jae Myung and President Donald Trump, held on August 25 at the White House, produced positive optics but left substantive questions unresolved. Despite pre-summit anxieties over Trump’s unpredictability and Seoul’s unusual decision to send both its national security and presidential chiefs of staff, the meeting was cordial. US outlets such as The Washington Post highlighted the personal rapport between Lee and Trump, casting the summit as a symbolic success that eased earlier doubts in Washington about Lee’s reliability as a partner.
The talks touched on four core areas—trade, investment, Korean Peninsula security, and Northeast Asian diplomacy. Sensitive issues such as agricultural market access and defense cost-sharing were not pressed, which reassured Seoul. Instead, the summit reaffirmed alliance ties while postponing difficult negotiations. Yet key disputes remained unresolved, including automobile tariffs, preferential treatment for semiconductors and pharmaceuticals, and differing interpretations of Korean investment structures in the United States. The absence of a joint statement underscored the lack of consensus on these substantive matters.
Ahead of the summit, Seoul had already signaled that it would avoid Taiwan-related issues, deferring any discussion of USFK realignment to later meetings, including the upcoming US National Defense Strategy (NDS) and Global Posture Review (GPR), and likely the “2+2” foreign and defense ministers’ talks. The government presented this as part of a pragmatic diplomatic posture. Still, South Korea accommodated major US demands: reconfirming a $350 billion investment fund, pledging $150 billion in additional direct investments, and expressing willingness to raise defense spending. Lee also acknowledged that the old formula of “security with the US, economy with China” (anmi-gyeongjung) was no longer viable, and openly backed closer trilateral cooperation with Japan—moves that dovetail with Washington’s strategic priorities.
Yet beneath the optics, key issues remain unsettled. No joint statement was released, signaling the lack of detailed consensus. Lee did not specify the scale of defense spending increases, USFK’s role redefinition remains highly sensitive, and major economic pledges—such as investment fund allocation, returns, and new nuclear cooperation—require follow-up negotiations. Trump’s tariff threats continue to hang over Seoul, while future debates on agricultural market access and defense cost-sharing are looming.
A conservative newspaper JoongAng-Ilbo, editorialized that the strategic implications of the summit are double-edged. On one hand, the summit reinforced the US defense commitment and solidified Lee’s image as a reliable ally, setting a new baseline for alliance coordination. On the other hand, it narrowed Seoul’s strategic flexibility: openly moving away from anmi-gyeongjung risks stronger backlash from China, and prospects for progress on North Korea remain dim following Pyongyang’s rejection of denuclearization talks. ⁸ In a similar vein, other conservative voices resonate with this concern, noting that despite the escalating sophistication of North Korea’s nuclear threat, the summit did not produce concrete measures on extended deterrence or on strengthening the combined ROK-US defense posture. The absence of a joint press release or joint statement after the meeting was read as a possible indication that the two sides had not yet reached substantive agreement on these critical security issues. ⁹
On the other hand, progressives take on a more positive view. A progressive Kyunghyang Shinmun argued in an op-ed that President Lee managed to draw out US interest in engaging with Korean Peninsula issues. For example, Lee raised the possibility of renewed North Korea-US talks, invoking his role as a “pace maker” to complement Trump’s as “peace maker.”¹⁰
In contrast, the conservative view emphasizes what wasn’t done: lack of clear commitment on extended deterrence, absence of detailed alliance posture changes, no joint statement, and so on. It suggests the summit, while symbolically helpful, fell short in securing the stronger security guarantees conservatives want.
Taken together, the summit reinforced the symbolic strength of the alliance but revealed structural asymmetries in the negotiation agenda. Conservatives see the missed commitments as evidence of vulnerability, while progressives interpret the optics and trust-building as a necessary prelude to substantive outcomes.

ROK-US-Japan Trilateral Cooperation

In July-August 2025, trilateral security cooperation between South Korea, the United States, and Japan moved forward in visible ways. On July 11, the three countries’ defense chiefs met in Seoul for the 22nd “Tri-CHOD” meeting. ¹¹ The meeting coincided with a joint air drill featuring a US B-52H bomber alongside South Korean and Japanese fighter jets over international waters. This exercise sent a clear message of deterrence toward North Korea amid its ongoing nuclear and missile development.
Conservative outlets like Chosun-Ilbo, however, highlighted that, unlike last year, the joint statement released after the meeting made no mention of China’s aggressive behavior or the Taiwan issue. ¹² A government official admitted, “It is true that we left out direct references to China or Taiwan,” but added, “We judged that those issues are encompassed within the expression ‘peace and stability in the region.’” This has raised concerns that Seoul may be beginning a process of “decoupling”—distancing itself from Washington and Tokyo’s efforts to jointly counter China, while instead focusing on restoring inter-Korean relations. The ongoing ROK-US discussions on the transfer of wartime operational control (OPCON) could accelerate this trend. The op-ed further argued that Japan, by contrast, is actively aligning its military structures with US strategy and expanding into multilateral security initiatives with Australia and the Philippines. The broader implication is that while Japan is moving to expand its capacity for joint operations, South Korea risks eroding the advantage it already holds.
At the diplomatic level, trilateral coordination deepened further. Vice foreign ministers met in Tokyo in mid-July to address not only North Korea but also broader regional issues including the Taiwan Strait, maritime disputes, supply chain resilience, and economic security. Bilateral diplomacy between Seoul and Tokyo also intensified: telephone talks between foreign ministers on July 24 were followed by a working dinner on July 29, paving the way for President Lee Jae Myung’s August 23–24 visit to Japan. On August 28, the trilateral coordination secretariat met in Tokyo, with working groups dedicating special focus to North Korea’s growing cyber capabilities. ¹³
According to the Institute of Foreign Affairs and National Security, a think-tank in South Korea, it was evaluated as a success for three reasons: first, the early realization of the summit was the result of South Korea’s proactive and forward-leaning response. Second, Seoul made clear its guiding principle of pragmatic diplomacy, moving beyond being tied down solely by historical issues and instead pursuing cooperation in areas of mutual, practical benefit. Third, since there has been no precedent of a South Korean leader visiting Japan before the United States, let alone right before a US visit, this trip highlighted strategic thinking that links Korea-Japan relations with Korea-US relations from the perspective of trilateral cooperation.¹⁴
The trilateral dynamic extended into August as well. On August 28, Japan hosted a meeting of the ROK-US-Japan Trilateral Coordination Secretariat, where working groups also focused specifically on North Korea’s evolving cyber threats.

ROK-Japan Summit

President Lee’s August 23 summit with Japanese Prime Minister Shigeru Ishiba marked the first Korean leader’s visit to Japan before visiting the United States, underscoring the strategic sequencing of trilateral diplomacy. Both leaders issued the first joint press statement in 17 years, pledging “future-oriented and stable” relations and announcing a new consultative body for shared challenges.¹⁵
Conservatives framed the summit as a turning point. Professor Oh Seung-hee of the Korea National Diplomatic Academy described it as both strategic and symbolic, signaling that Korea–Japan cooperation is inseparable from trilateral alignment with Washington.¹⁶ Conservative outlets like Dong-A Ilbo portrayed Lee’s shift as proof of realist statesmanship—moving past his earlier “anti-Japan, pro-China” image to embrace trilateralism as structural necessity amid US–China rivalry, Trump’s transactionalism, and shared vulnerabilities. In this framing, compromise with Japan was not weakness but adaptation to geopolitical realities.¹⁷
Progressives, by contrast, were more reserved and critical. Kyunghyang Shinmun reported protests from student activists and NGOs, who argued that Lee’s reaffirmation of the 2015 comfort women agreement effectively “froze” historical justice in favor of pragmatic diplomacy.¹⁸  Segye Ilbo echoed this critique, accusing Lee of bending too far toward Ishiba’s preferences and sidelining historical accountability. For progressives, the summit’s symbolic restoration came at the cost of silencing unresolved grievances.¹⁹
The July–August sequence demonstrated clear momentum in trilateral security and diplomacy, but also exposed enduring tensions in Seoul’s strategic balancing. Conservatives highlight the risks of hedging away from counter-China alignment and caution that Seoul’s concessions could erode its leverage, while progressives warn against historical compromise and over-accommodation of Japan. Both perspectives converge on one point: the symbolic restoration of summit diplomacy has raised expectations, but sustaining it will require careful management of unresolved disputes.
The Institute of Foreign Affairs and National Security praised Seoul’s proactive diplomacy and strategic sequencing of Japan–US visits as evidence of forward-looking pragmatism. Similarly, the Institute of National Security Strategy hailed the summit as the “real starting point” of Korea’s pragmatic, national-interest-driven diplomacy, but cautioned that Ishiba’s fragile domestic position and the ideological leanings of his potential successors could yet destabilize the gains. Their prescription: focus on shared agendas, exercise restraint on divisive issues, and cultivate medium- to long-term cooperation that balances national interest with bilateral sensitivities.²⁰

The Putin-Trump Summit

On August 15, a historic summit between US President Donald Trump and Russian President Vladimir Putin took place in Alaska. At the meeting, Putin demanded that Ukraine withdraw from Donetsk and Luhansk as a precondition for ending the war, in exchange for a “frontline freeze” in Kherson and Zaporizhzhia. He further insisted that Ukraine relinquish the entire Donbas.
The summit immediately drew intense scrutiny from South Korean media. While progressive and conservative outlets approached it from different ideological lenses, their commentary converged on a shared anxiety: great-power transactionalism, where smaller states risk being sacrificed for the expedient gains of larger ones. Yet the differences lie in what lessons South Korea should draw from this precedent.
Conservative commentary framed the Alaska summit as a warning for South Korea’s dependence on Washington. A JoongAng Ilbo op-ed condemned Trump’s willingness to pressure Ukraine into territorial concessions, calling it “secondary victimization”—first at Russia’s hands, then at America’s.²¹ The implicit message for Seoul was clear: if Trump can push Kyiv to cede Donbas, he could just as easily recognize North Korea’s nuclear status or impose arms control on Pyongyang’s terms, leaving South Korea sidelined. The policy prescription was to bolster strategic defenses and cultivate enough autonomy within the alliance to resist being treated as a pawn in US–DPRK negotiations.
Another conservative op-ed by Professor Song Seung Jong (Dong-A Ilbo) emphasized reciprocity and moral obligation.²² Drawing on the Korean War, the piece warned against complacency: just as the South survived because of UN intervention in 1950, Ukraine today depends on international solidarity. If South Koreans dismiss Ukraine’s struggle as “someone else’s problem,” they risk undermining their own credibility. In a future crisis, the world may prove less willing to rally behind a country that failed to extend solidarity when others were under attack. Thus, credibility within alliances requires not just reliance on others but visible commitment to common struggles.
Across both conservative narratives, the alliance framework remains central. Whether framed as strengthening autonomy within the US relationship or as ensuring reciprocal credibility, the underlying assumption is that South Korea’s survival depends on maintaining trust and alignment with allies, even in an era of great-power bargaining.
Progressive outlets, by contrast, were more critical of the structural dynamics of alliance dependence. One op-ed compared the Alaska summit to Munich in 1938 and Yalta in 1945²³, where small states were sacrificed at the negotiating table. Trump’s willingness to legitimize Russian control of Crimea and rule out Ukrainian NATO membership was interpreted as part of a recurring pattern: the fates of weaker nations decided without their consent. The lesson for South Korea was not to double down on the alliance, but to pursue self-reliance. Unless Seoul cultivates its own independent perspective on international order, it risks repeating history as the next pawn in US–China or US–North Korea bargaining.
Another progressive analysis in Pressian moved from critique to prescription. It argued that the true danger for South Korea lies in “Korea passing,” where great powers negotiate over the peninsula without Seoul’s input.²⁴ To counter this, the author called for reviving “northern diplomacy,” suspended under the previous administration, and broadening engagement with North Korea, China, and Russia. By creating its own policy space beyond the US–Japan framework, Seoul could avoid marginalization and lay the foundation for sustainable peace. For this progressive voice, the summit underscored not only the risks of alliance dependence but also the urgency of proactive, multipolar diplomacy.
Both conservative and progressive outlets interpret the Alaska summit as a troubling signal of how easily small states can be sacrificed in great-power deals. Both warn of the dangers of transactionalism and recognize parallels between Ukraine’s plight and South Korea’s precarious security position.
Yet the divergence is sharp when it comes to prescriptions. Conservatives remain alliance-centric: one urges stronger defenses within the US framework, while the other stresses reciprocity to sustain allied support. Progressives, on the other hand, are skeptical of relying too heavily on Washington: one highlights the historical pattern of betrayal and calls for self-reliance, while the other promotes northern diplomacy to diversify Seoul’s diplomatic options.

The SCO Summit, Beijing Victory Day Parade, and the Putin-Kim Visit

From August 31 to September 1, Tianjin hosted the largest-ever Shanghai Cooperation Organization (SCO) summit, immediately followed by the September 3 Beijing parade marking the 80th anniversary of Victory Day. The presence of Kim Jong-un and Vladimir Putin alongside Xi Jinping highlighted the consolidation of a North Korea–China–Russia bloc not seen at the top-leadership level in 66 years. South Korean media across the ideological spectrum interpreted these events as signals of an emerging “anti-US, anti-Western” alignment, but their assessments diverged sharply in tone, emphasis, and prescriptions.
Conservative outlets such as Chosun Ilbo and Dong-A Ilbo framed the summit and parade primarily as a threat to South Korea’s national security. Chosun Ilbo acknowledged that the North Korea–China–Russia axis is not new, but argued that its reinforcement is “undeniably disadvantageous” for Seoul. It emphasized Kim’s upgraded diplomatic treatment and possible material support from Beijing and Moscow, which could strengthen Pyongyang’s hand in bypassing Seoul to deal directly with Washington. The implicit warning was that South Korea risks marginalization unless it proves its strategic value to the US through concrete alignment, not just rhetoric.²⁵
Meanwhile, Dong-A Ilbo tied these developments to the structural pressures created by Trump’s “America First” policies. It argued that Washington’s heavy-handed economic demands are straining alliances and inadvertently giving China an opening. Yet, despite these difficulties, it stressed the imperative of reinforcing security cooperation with the US and Japan to offset the trilateral authoritarian bloc.²⁶
It further claims that if the Lee Jae Myung administration avoids focusing on North Korean denuclearization, honors past inter-Korean agreements, reforms constitutional clauses on unification, and amends or repeals the National Security Law, Seoul could restore inter-Korean relations and restart peace cooperation. The upcoming Gyeongju APEC summit, it says, offers an opportunity to strengthen Korea’s role as a mediator between the US and China, and between North Korea and the US.²⁷ Another conservative piece highlighted Russian Ambassador Alexander Matsegora’s suggestion that North Korea could be included in Sino-Russian military exercises. Even if floated as a personal view, it warned, such institutionalized cooperation would formalize a counter-bloc to the ROK-US-Japan partnership and put South Korea “in a desperate position.”²⁸
Across these conservative narratives, the unifying theme is vulnerability. South Korea risks being sidelined by US–DPRK direct talks, pressured by US trade demands, and targeted by a hostile trilateral bloc. The conservative prescription is consistent: tighten the alliance with Washington and Tokyo, demonstrate value to the US, and prepare for escalatory bloc confrontation.
Progressive outlets offered a contrasting interpretation. In its op-ed, Hankyeoreh identified three unresolved questions from Kim Jong-un’s visit to Beijing: (1) the omission of “denuclearization” from official statements, suggesting Beijing’s possible acceptance of North Korea’s nuclear status; (2) a shift toward state-to-state diplomacy as China’s foreign ministry, not party channels, managed the visit; and (3) the likelihood of Xi Jinping visiting Pyongyang, which would symbolize deeper institutional ties ahead of the Gyeongju APEC summit. For Hankyeoreh, these dynamics reflected both risk and opportunity: while China’s softening on denuclearization was troubling, inter-Korean diplomacy and Seoul’s role as a mediator at APEC remained viable avenues for influence.²⁹
Kyunghyang Shinmun echoed concerns about the absence of denuclearization language, framing it as evidence of China’s retreat from pressuring Pyongyang. Yet, unlike conservative outlets, it stressed that South Korea should not abandon the goal of denuclearization but recalibrate expectations. President Lee Jae Myung’s phased “freeze–reduce–denuclearize” proposal was presented as pragmatic in the face of North Korea’s hardline stance. Under this logic, Seoul should act as a “pacemaker” that facilitates US–DPRK dialogue while engaging China to keep diplomatic channels open.³⁰
A progressive structural critique also appeared: South Korea is too reliant on US-Japan centered frameworks while underutilizing multilateral networks like SCO and BRICS+. These blocs represent more than 60 percent of Korea’s trade and supply essential resources such as energy and food. For progressives, expanding ties with them could reduce Seoul’s overdependence on specific alliances and secure greater policy autonomy in a multipolar world order.³¹
The contrast between conservative and progressive media reflects deeper ideological divides about South Korea’s strategic identity. Conservatives interpret bloc consolidation as a zero-sum challenge, reinforcing the logic of tight alignment with Washington and Tokyo. They view Seoul’s vulnerability through the lens of abandonment risk, fearing “Korea passing” in US–DPRK negotiations and pressing for stronger military and economic solidarity with existing allies.
Progressives, by contrast, see the same events as highlighting the limits of alliance dependency and the need for diversified strategies. Their narratives emphasize autonomy, multipolar engagement, and pragmatic diplomacy, even if that requires accepting North Korea’s nuclear reality in the short term. Where conservatives warn of “desperate” security risks, progressives frame the moment as a historic crossroads: South Korea could either remain a peripheral ally or emerge as a mediator and regional balancer.