As U.S. President Donald Trump prepares to visit Beijing on May 14-15, 2026, for a highly anticipated summit with President Xi Jinping, the world is watching to see if the two leaders can stabilize a U.S.-China relationship strained by disputes over trade, technological race, the future of Taiwan, and the rippling effects of the conflict with Iran.

Trump’s trip to Beijing – already rescheduled once due to the conflict in the Middle East – has been described as having tremendous symbolic significance. Yet, expectations for a breakthrough on specific deliverables should remain low, according to Susan Thornton, a China expert and former U.S. diplomat. Thornton joined APARC Director Kiyoteru Tsutsui on the latest episode of the APARC Briefing video series to analyze the potential outcomes of the Trump-Xi summit and the high-stakes dynamics shaping U.S.-China relations.
 

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Trade and Tech: A Call for a Paradigm Shift

On the economic front, Thornton drew on her deep experience in trade negotiations to critique the lack of focus in U.S. policy.

"The biggest problem for U.S. negotiators is deciding what it is that we want from China," she said. "We tend to give them a long list of revolving priorities, which [makes it easy for the] other side of the negotiating table to just fob them off and not actually commit to anything over years of negotiations.”

On the technology rivalry between the two powers, Thornton urged a shift in strategy. Rather than pursuing sweeping export controls that are often unilateral and incomplete, she advocated for a narrower, multilateral approach focused on the most sensitive technologies, combined with a greater emphasis on American innovation. AI governance is one of the areas Thornton believes could be a common ground for Washington and Beijing to align their policies.

“It's going to be very hard for the United States to contain China's technological ambitions and growth,” she said. “I don't think that we're exactly competing on the same metrics. I question how it is that we're going to be able to keep China from getting technologies that are dual-use but might be useful in some military application when these things are basically economy-wide products.”

When it comes to technological competition, "We need to try to run faster than China, not be constantly trying to trip China up and looking in the rearview mirror," Thornton urged. "I don't think that's going to bode well for the long-term development of the U.S. tech sector."

The Taiwan Flashpoint: A Longer-Term Challenge

While Taiwan remains the most dangerous flashpoint that could trigger a kinetic warfare between the United States and China, Thornton believes that the immediate risk of conflict has receded, in accordance with recent U.S. threat assessments that no longer see 2027 as a likely target date for a potential Chinese takeover of the island.

Beijing, she argued, is closely watching the domestic political situation in Taiwan and how the leadership in Taipei views U.S. reliability and support. “I think the Chinese have determined, based on both of those things they've been watching, that they can afford to wait a bit longer, see what happens.”

Thornton cautioned, however, that, even as a conflict over Taiwan may no longer pose an immediate-term threat, “it is a problem that is going to develop over the coming decade.”

Diplomacy in a Multipolar World Order 

When asked about the future of the global order, Thornton described a trend toward fragmentation. If the United States steps back from its global leadership role, it is difficult to see who else would be willing or able to shoulder the cost of providing global public goods, she said. A “thinner world order,” with the United Nations at its center, may eventually find favor with countries that can afford to pay for some of those goods, she reflected.

In a closing advice for aspiring foreign service officers, Thornton argued that the emergence of a multipolar world reinforces the need for skilled diplomacy. “As the global order changes and more countries come into the mix of the councils of politics in the world, the United States will have to lean back toward diplomacy more,” she predicted.

“We're going to need very good diplomats,” she concluded, because it will be significantly harder to be an American diplomat in a fragmented world order in which the United States is no longer the single overwhelmingly dominant power.

The Japanese public is largely opposed to dispatching the Japan Self-Defense Forces (JSDF) to the Strait of Hormuz, but framing the issue in terms of Japan’s energy dependence substantially raises support for military involvement in Iran. By contrast, arguments invoking the Japan-U.S. alliance and legal legitimacy for military action have no such effect. These are the findings from a vignette experiment fielded by the Stanford Japan Barometer (SJB) in March, one month after Japan’s February 2026 general election.

The results also reveal that mentioning energy dependence moves opinion in favor of military deployment even among respondents who are told that diplomacy, not deployment, is the right response, suggesting that energy-dependence messaging changes minds regardless of policy recommendation. Alliance- and legal-focused messaging, by contrast, have no measurable effect.

SJB is a large-scale, multi-wave public opinion survey on political, economic, and social issues in Japan. A project of the Japan Program at Stanford University’s Shorenstein Asia-Pacific Research Center (APARC), SJB is led by Stanford sociologist Kiyoteru Tsutsui, the director of APARC and the Japan Program, and political scientist Charles Crabtree. The vignette experiment on the Japanese public's attitude toward military deployment in Iran was part of the final, three-wave panel survey SJB fielded around Japan’s February 2026 snap election, which focused on identifying public attitudes toward immigration.

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A Public Wary of War

The SJB experiment finds that, without any contextual framing, Japanese respondents lean against JSDF dispatch to the Strait of Hormuz, averaging a score of 2.00 on a four-point scale, where 1 represents "strongly oppose" and 4 represents "strongly support." 

This baseline skepticism reflects the Japanese public’s reluctance to deploy military forces abroad, rooted in Article 9 of the postwar constitution, and a broader wariness of entanglement in the Iran conflict. But the crisis in the Middle East has fueled deep economic fears in Japan, which relies on the region for over 90% of its crude oil imports, making it highly dependent on the Strait of Hormuz for energy security.

The SJB team wanted to know: Could this energy security argument shift the public’s baseline opposition to military deployment, and if so, how, compared with other justifications?

The Energy Argument Works Both Directions

The experiment randomly assigned respondents to read one of several short policy statements before answering whether they supported JSDF dispatch to the Strait of Hormuz. Some arguments favored deployment; others opposed it. Each invoked a different rationale: energy security, the Japan-U.S. alliance, and constitutional legitimacy.

The most striking change in attitude came from the energy-dependence framing.

Respondents who read a pro-dispatch energy argument – emphasizing that a blockade of the Strait of Hormuz would devastate Japan's economy and living standards, making military involvement necessary – showed a statistically significant increase in support for JSDF deployment, rising approximately 0.12 points above the control group.

Notably, respondents who read a con-dispatch energy argument – which presented the same energy-dependence facts but concluded that Japan should pursue diplomacy through its own channels with Iran rather than deploy forces – showed an even larger increase in support, rising approximately 0.28 points above the control group.

That is, simply mentioning Japan's vulnerability to an oil supply disruption raised support for JSDF involvement, even when the message explicitly argued against military action. “This pattern suggests that the energy-dependence information itself, rather than the normative conclusion drawn from it, is what moves opinion,” the researchers write on the SJB website.

Alliance and Legal Arguments Fall Flat

In contrast, two other commonly invoked arguments – obligations related to the Japan-U.S. alliance and constitutional authority – had virtually no effect on the Japanese public’s support of JSDF deployment.

The alliance framing emphasized that contributing to U.S. operations in the Strait of Hormuz is essential, given the centrality of the U.S.-Japan security partnership to Japan's defense. A counter-argument noted that many international observers view U.S. strikes on Iran as violations of international law and that most European allies are declining to participate.

Neither version significantly moved opinion on JSDF dispatch.

Similarly, arguments about whether the conflict legally qualifies for the exercise of collective self-defense – with one version arguing that new legislation could authorize dispatch and another arguing that no existing legal basis permits it – produced near-zero effects.

These null results are particularly striking given how frequently alliance obligations and constitutional legitimacy dominate elite debates over JSDF deployment in Japan. The data suggest that, at least in this scenario, these arguments resonate far more in policy circles than with the general public.

The findings carry important lessons for Japanese policymakers, who are walking a tightrope between the United States and Iran: “Concrete economic stakes are more resonant than foreign-policy abstractions,” note the SJB researchers. Still, the Japanese public’s default position is opposition to JSDF deployment in Iran. “The framing experiments shift opinion at the margins, but do not reverse the underlying skepticism toward JSDF dispatch.”

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At a recent seminar hosted by APARCʼs China Program, Professor Jessica Chen Weiss, the David M. Lampton Professor of China Studies at the Johns Hopkins University's School of Advanced International Studies, presented findings from her forthcoming book, Faultlines: The Tensions Beneath China's Global Ambitions (under contract with Oxford University Press), which examines how domestic politics and regime insecurity shape China’s foreign policy ambitions, prospects for peaceful coexistence, and the future of international order. Drawing on research and fieldwork in China, Weiss argued that understanding Beijingʼs behavior on the world stage requires looking beyond ideology to the contested priorities and political calculations that drive decision-making within the Chinese Communist Party (CCP).

Weiss proposed a framework centered on three pillars that have sustained CCP legitimacy since the late 1970s: sovereignty (nationalism), security (civility), and development. Her analysis reveals that China's objectives are not static but moving targets shaped by competing domestic interests, leadership priorities, and international pressures.

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The Sovereignty-Security-Development Paradigm
 

At the heart of Weissʼs argument is the recognition that the CCPʼs foremost concern is domestic survival. In the face of the collapse of most communist regimes, the Party has remained vigilant against what it calls “peaceful evolution” and democratic contagion.

On issues touching core sovereignty concerns – Taiwan, Hong Kong, and maritime territorial claims – China has been “hyperactive” in making demands, even when doing so invites international censure. Weiss explained that the more central an issue is to CCP domestic legitimacy, the harder it becomes to make concessions, and the more likely international pressure is to backfire.

Yet tensions exist between competing priorities. China has compromised on certain border disputes to shore up domestic security, while its evolving stance on climate change reflects a shift from viewing carbon limits as threats to growth to recognizing the greater threat environmental catastrophes present to the nation’s stability.

Beyond the Monolith: China's Internal Contestation
 

Weissʼs research demonstrates that authoritarian China is far from monolithic. Different geographic, economic, institutional, and even ideological interests shape policy debates, even if most actors lack formal veto power. Local governments can resist central directives, as evidenced during the COVID-19 outbreak, when local officials initially withheld information about human-to-human transmission from the central government to prevent panic from disrupting important political meetings.

This pattern of center-local tension extends to China's international commitments. Local officials often game environmental regulations to juice growth and secure promotions, undermining Beijingʼs pledges on carbon emissions. On issues ranging from Belt and Road investments to export controls, implementation frequently diverges from stated policy as local actors pursue their own interests.

Weiss’s framework distinguishes among issues that are both central and uncontested (such as Taiwan), those that are central but contested (like climate change and trade policy), and peripheral issues where Beijing has shown greater flexibility (such as demonstrated by many UN peacekeeping initiatives). This helps explain why international pressure succeeds in some domains but fails spectacularly in others.

"The more central an issue is domestically, the more pressure the government faces to perform, and the harder it is to defy these domestic expectations," Weiss said. As a result, international pressure on these central issues is more likely to backfire, forcing the government to be seen as defending its core interests. She underscored that "even on these central issues, there's often tension with other central priorities, and managing these trade-offs comes with a number of different risks. It also means that sometimes an issue that touches on one pillar of regime support can yield to another."

Nationalism as Constraint and Tool
 

Weiss described nationalism as both a pillar of the CCPʼs legitimacy and a potential vulnerability when the government’s response appears weak. While large-scale anti-foreign protests have become rare, nationalist sentiment remains active online and shapes diplomatic calculations.

During Speaker Nancy Pelosiʼs 2022 visit to Taiwan, Chinese social media erupted with calls for the PLA to shoot down her plane. One interlocutor told Weiss his 14-year-old son and friends had stayed up past bedtime to watch Pelosiʼs plane land, illustrating nationalismʼs penetration into Chinese society.

Survey research reveals Chinese public opinion is quite hawkish, with majorities supporting military spending and viewing the U.S. presence in Asia as a threat. The government often refrains from suppressing nationalist sentiment to avoid backlash, even when doing so creates diplomatic complications. Weissʼs public opinion survey experiments, however, reveal that tough but vague threats can provide the government with wiggle room for de-escalation, although disapproval emerges when action is not sufficiently tough.

Regime Security Without Ideological Crusade
 

Weiss pushed back against arguments that China is bent on global domination or that ideology drives conflict with the West. While the CCP seeks a less ideologically threatening environment, it must balance this against development and market access.

This pragmatic calculus explains China's constrained support for Russiaʼs war in Ukraine — Beijing fears secondary sanctions more than it values autocratic solidarity. Rather than exporting revolution, China has worked with incumbents of all political stripes in the service of its national interests.

Chinaʼs strategy focuses on making autocracy viable at home, not on defeating democracy globally. This suggests room for coexistence if both sides can reach a détente on interference in internal affairs.

“China's activities are making autocracy more viable and, to the extent that China is succeeding, making China's example more appealing as a consequence. But its strategy doesn't hinge on defeating democracy around the world,” argued Weiss. This implies, to her view, that “there is more room for coexistence between autocracies and democracies if these different systems can find or reach a potential détente in the realm of ideas about how countries govern themselves, and importantly, they need to pull back their efforts in other societies across boundaries.”

Interdependence and Future Trajectories
 

Weiss concluded by outlining how her framework suggests different engagement strategies depending on where issues fall within the centrality-contestation matrix. On central but uncontested issues like Taiwan, pressure proves counterproductive, and reciprocal restraint may be most promising. On central but contested issues like currency, multilateral pressure can influence certain Chinese constituencies against others. On peripheral issues, such pressure is most effective unless powerful domestic constituencies subvert implementation.

Addressing questions about U.S.-China decoupling, Weiss noted that both sides recognize there are interdependencies that don’t have quick solutions. Even in a critical area like minerals, diversification will take at least a decade, and Chinese processing will still dominate globally. The goal of diversification should be to preempt coercion, not to achieve true decoupling.

Japan’s first female prime minister, Sanae Takaichi, began her tenure with strong approval ratings. Yet rising tensions with China over her recent comments about Taiwan and doubts over her government's newly unveiled stimulus package now loom large. Kiyoteru Tsutsui, the director of APARC and our Japan Program, assesses Takaichi's first month in office and what to watch for next. Get his full analysis in our APARC Briefing:

APARC Briefing is a new format we are experimenting with to provide concise, evidence-based analysis of fast-moving developments in Asian affairs. To stay up to date on future installments in this new video series, subscribe to APARC's YouTube channel.