There is no question that the US and China, and their rivalry, are major parts of the post-2008 world order. But is this a return to the strategic terrain of 1947–91, or have there been basic shifts in global realities? I argue that we have entered a post-hegemonic era in which the asymmetric parity of the global powers makes persisting rivalry more likely than victory or defeat. Meanwhile, the thick international connectivity created by revolutions in information and communication technology (Baldwin Reference Baldwin2016) has replaced Cold War spheres of influence with a multinodal web of interactions. These transformations of global context are sketched here, and they require a critical rethinking of Schelling’s premises, the topic of the ensuing section.
When General Secretary Xi claimed in 2018 that the world order was experiencing “changes unseen in a century,” his primary focus was the rise of China (Bachulska, Leonard, and Oertel Reference Bachulska, Leonard and Oertel2024). By the first few months of the second Trump administration, few would doubt Xi’s claim, or restrict it to the rise of China (Posen Reference Posen2025a). At this point, attempts to predict the future lead to a blinding array of plausible scenarios, each in a fragile nest of hypotheticals. More important than the reimagining of possibilities, the structural changes underlying the new era require rethinking strategic rationality for a prolonged era of post-hegemonic uncertainty. The asymmetric parity of the US and China puts the two at the center of global concerns, but the web of contingent uncertainty reaches well beyond their rivalry.
Despite the rise of China and the Trump administration’s commitment to “make America great again,” neither Xi nor Trump consider the current world order to be hegemonic. As Secretary of State Marco Rubio (Reference Rubio2025) put it, “[i]t’s not normal for the world to simply have a unipolar power. … It was a product of the end of the Cold War, but eventually you were going to reach back to a point where you had a multipolar world, multi-great powers in different parts of the planet.” The term “multipolar” usefully distinguishes the current global context from the American unipolar moment after the Cold War, and it implies more complexity than a return to bipolarity. However, it is a residual category, and it raises questions about how many poles there are, the difference between poles and nonpoles, and the difference between those states that count and the rest.
The new era deserves a more substantive term. Many have been suggested: “multiplex” (Acharya Reference Acharya2014), “post-American” (Zakaria Reference Zakaria2011), “post-Western” (Stuenkel Reference Stuenkel2016), “polycentric” (Möckli Reference Möckli2012), “G-zero” (Bremmer Reference Bremmer2013), “polygonal” (Noesselt Reference Noesselt2022), and “decentred globalism” (Buzan Reference Buzan2011). I offer the term “multinodal” to suggest a relational context in which actors are located at multidimensional vertices of interaction (Womack Reference Womack2016b; Reference Womack2023, 161–72). Nodes differ in their situations and connectivities. They are parts of a matrix that is not controlled by polar powers, but in which relative capacity and agent autonomy interact with other nodes in a field of uncertainty. There are asymmetries at every level of the matrix—global, regional, and local—and these set standing patterns of attention and influence. In theory, an actor’s strategic prudence can manage uncertainty to its advantage, though negative dialectics of frustrated control and costly resistance are possible at every level.
The challenge raised by the new era is not how to reapply Schelling’s strategic rationality to a changed situation, but whether it is necessary to rethink the fundamental premises of Cold War diplomacy. And while the current mutual fixation of the US and China on their bilateral rivalry is understandable, the global political economy has moved decisively beyond the possibility of hegemonic control by either. The agency of nonglobal powers has expanded, global value chains have displaced trade in final products, and international connectivity is much less channeled through apex states, or located in one camp or another.Footnote 9 In a world of diffuse agency and reduced coercive efficacy, the primary international question is not “Who is in charge?” but rather, “What is going to happen?” Power vacuums are replaced by certainty vacuums. In reaching back to the coercive strategies of Schelling, the US is trying to roll back a process that it cannot control. It will be argued below that Putin’s adventure in Ukraine should serve as a teacher by negative example regarding the vanity of hegemonic nostalgia.
The multinodal model of the current era is less stable than liberal institutionalism would suggest, and it is more complex than the great-power confrontation expected by power transition theories. While the era is certainly one of complex interdependence, as Keohane and Nye (Reference Keohane and Nye1977) would argue, the fundamental task of most actors is to preserve autonomy in an uncertain world. This is most evident in smaller countries, as the case of Singapore discussed below will illustrate. The state must protect autonomy by increasing its capacity to resist, and at the same time hedge against uncertainty by diversifying connectivity and encouraging partnerships. Meanwhile, the behavior of smaller states is not simply the inconsequential noise of the peanut gallery jostling for balcony seats. In a multinodal world, relative power matters, but it does not easily command. Effective international influence by larger powers requires reassurance regarding autonomy and respect for hedging. As Hirschman (Reference Hirschman1980, ix) acknowledged in the preface to the 35th-anniversary edition of National Power and the Structure of Foreign Trade, asymmetric interdependence does not equate to dependence. Connectivity is at the same time an opportunity and an exposure to risk, and globalization diversifies both opportunity and risk. Economic interaction under the shelter of a hegemonic long peace (Wagner Reference Wagner2010) did not face the current challenges of post-hegemonic flux.
While liberal institutionalism seems too complacent, the dynamics of the new era should not be simplified into a crisis of power transition between the US and China. The classic theories of power transition (Organski Reference Organski1968; Organski and Kugler Reference Organski and Kugler1980; Tammen and Kugler Reference Tammen and Kugler2006) focus on the approach to parity of the rising power, and many others emphasize the inevitability of great-power conflict (Mearsheimer Reference Mearsheimer2001), the ambitions of China (Friedberg Reference Friedberg2012), or anxiety about a “Thucydides trap” (Allison Reference Allison2017). A situation of protracted global rivalry does indeed seem inevitable, though the ambiguous moment of parity, economic enmeshment, and prospective costs of conflict lower the likelihood of war (Duan Reference Duan2025). As China wakes up each morning it will look east, and America will look west. However, their asymmetries of resources and situation mean that they do not face each other as two boxers in a ring. Moreover, while the onlookers also pay close attention to the global rivalry, they are neither passive nor precommitted to a side. These complications by no means preclude war, even catastrophic nuclear war. As the Chinese scholar Yu Keping (Reference Yu2023) argues, the age of hegemonic empire is over, but the temptations of imperialism remain (Fei Reference Fei2023).
The US and China have reached global asymmetric parity (Womack Reference Womack2016a) in that together they are the middle third of the world economy, half of the world’s military expenditures, and are the only two countries generally considered to be global powers. But while they are a risk to one another, neither their capacities nor their vulnerabilities are symmetric. Their asymmetry begins with gross domestic product (GDP), the economic bottom line, and continues through all aspects of their relationship. Tammen and Kugler (Reference Tammen and Kugler2006, 43) provide a useful rule of thumb for expecting a power transition. According to them, troubles can be expected to begin when the rising power reaches within 20% of the incumbent’s GDP, and they pass beyond transition when the now risen power exceeds the former incumbent’s GDP by 20%. But by which measure of GDP? Using purchasing power parity (PPP), China reached 80% of the US GDP in 2010 and surpassed 120% in 2023, while compared at the exchange rate, China will not reach 80% until 2037 and will surpass 120% only in 2063.Footnote 10 Not only is China already comfortably beyond the US by one measure, but at the point it surpassed the US it still had 14 years to go before reaching the other measure’s power transition threshold! The difference reflects vastly asymmetric economic structures. Both the quantity of production and its exchange value are meaningful measures. In a trade war, China should have an escalatory advantage (Medeiros and Polk Reference Medeiros and Polk2025; Posen Reference Posen2025b).Footnote 11 In a military conflict, wealth and technology should give the US the advantage. The disparity in development and wealth is reflected in per capita differences. China’s GDP per capita, even in PPP terms, is 29% of that of the US, and will not reach 50% until 2052. It is hardly surprising, therefore, that the US is the avatar of “the West,” while China is the avatar of “the Rest.”
The geopolitics of the two is in even greater contrast than their economic levels. The US is habituated to being a two-ocean global economy centered on finance. China is ringed by 14 land neighbors and the seaward barriers of Japan, Taiwan, and Philippines. China has only recently regained economic centrality in Pacific Asia. For all its political tensions, the economic region comprising Korea, Japan, Greater China, and Southeast Asia has become larger and more integrated than North America and the European Union combined. China’s regional economic relationships are the foundation of its rise as a global power, and its regional political challenges, most obviously with Taiwan, Japan, and the Koreas, are the key question marks over its future prospects. If China attempted to fence in its Pacific Asian neighborhood, it would destroy the foundations of its global power (Womack Reference Womack2023).
The asymmetry of global parity has two contrary bilateral effects. On the one hand, the US and China are running different races. While each judges itself by its relationship to the other, they are taking different steps toward different goals. The financial strength, embedded centrality, and innovative acumen of the US are not intrinsically a threat to China; neither is China’s continued economic development a direct threat to the US. Indeed, for the past 40 years the prosperity of each has depended on the asymmetric contribution of the other. On the other hand, however, asymmetry engenders structural misunderstanding, while parity sharpens the mutual perception of risk. An asymmetric relationship is best viewed not as a single relationship, but as a bundle of two: A to B, and B to A. Each side perceives the other through the lens of a quite different exposure, and interprets what it perceives using its own set of national experiences (Womack Reference Womack2006, 78–85; 2016b, 43–47). The interpretations of the other’s behavior are often a misleading projection of one’s own situation.Footnote 12 The US and China do not understand one another, and will not. Mature asymmetric relationships are not based on cognitive convergence, but rather on mutual respect, common interests in avoiding hostility, and cooperation when possible. Asymmetric maturity often emerges from stalemate, and in the case of the US and China, neither can eliminate the other without the likelihood of self-destruction.
Meanwhile, the US and China are not generals of their respective camps. The current multinodal world orderFootnote 13 is a matrix of active agents, both state and nonstate.Footnote 14 To be sure, hegemonic control is never easy. Davids have a long history of frustrating Goliaths, and have good reason to do so (Gallarotti Reference Gallarotti2010; Sechser Reference Sechser2010). Mack (Reference Mack1975) provided the classic analysis of the archetypical modern case, the American war in Vietnam. But the small wars of the Cold War era were essentially bilateral affairs, while Putin’s invasion of Ukraine demonstrates that now nothing remains bilateral. And the issues of economics, politics, and security are inseparably connected and therefore difficult to rank. Nuclear mutually assured destruction remains at the bottom of a Maslovian dystopia, but above it are the mutually assured disruptions of cybersecurity and the mutually assured confusions of disinformation. What in earlier times would be considered acts of war have evolved into gray-zone gambits. The security realm of hurt-without-victory has expanded, and to it can be added the weaponization of economics and politics. Economics and politics are themselves complex and interactive within their own realms. And then there are global questions of sustainability that at a minimum require parallel efforts by states.
Besides the multidimensional concerns of a multinodal world, there is the diffuse agency of the nodes themselves. In 2008 the GDP of the developing world exceeded that of the developed world for the first time since the nineteenth century.Footnote 15 Meanwhile, communications, information, and logistics have facilitated a diffusion of connectivity (Baldwin Reference Baldwin2016). Globalization has expanded the options of every actor. And while there are ebbs and redirections in the currents of globalization, the underlying connectivity is not reversable. Each node is the center of a located web of relationships within which it pursues its opportunities and reduces its risks. Since the relationships are with other autonomous agents they can be viewed as essentially horizontal, though each relationship is canted up or down by asymmetries of exposure, and each is made more or less intense by distance and other factors. The greatest asymmetries of exposure are with the global powers, but even these are no longer simply vertical, hegemonic relationships.
A multinodal world is not a defective vertical world in which greater coercion is needed to achieve the same result. It is one in which the predominance of the horizontal dimension of connectivity is usually more salient than the vertical dimension of coercive authority (Qin Reference Qin, Womack, Wang, Wu, Qin and Goh2023). While global powers—as well as every stronger power in an asymmetric relationship—still have the greater power to hurt, they are less able to coerce effectively, and their efforts to force a specific relationship into compliance are likely to have counterproductive collateral effects on their other relationships. Every agent has more possibilities of resisting, hedging, and developing alternatives.Footnote 16 Some are more exposed to one or the other global power, but that dependency tends to heighten the priority of maintaining autonomy. There are many other asymmetries besides global ones: middle powers, regional subsystems, and more. Each actor must navigate a matrix of located asymmetric relationships according to its own interests and options.
While the world beyond hegemonic control is empowering to each agent, it is also one of bewildering vulnerability. The increase in one’s own options is welcome; however, the increase in everyone else’s options magnifies uncertainty. As Katzenstein (Reference Katzenstein2022) points out, each must manage a relational jungle rather than tend a garden of discrete causes and effects. In a horizontal world, the reduction of uncertainty is the cardinal diplomatic task. The unknown future can be structured by each actor’s network of stable relationships. Thus, despite the polarizing tendencies of global rivalry, most nonglobal actors will want to maintain positive relationships with both global powers. Beneath the global level, stabilizing local and regional relationships is also crucial. Thus, partnerships, regional institutions, and more general patterns of connectivity become vital in the effort to reduce uncertainty.
The strategic situation of Singapore can be used to illustrate the difference between the uncertainty dilemma faced by smaller countries in a multinodal context and the Cold War security dilemma. The dilemmas are similar in that awareness of vulnerability drives military preparedness. But the security dilemma imagines a situation of bilateral symmetry, while the uncertainty dilemma confronts multilateral asymmetry. Besides two-year compulsory military service, Singapore’s per capita military budget in 2023 was exceeded only by Israel and the US, and its total defense budget was 26% larger than that of Indonesia (Stockholm International Peace Research Institute 2025). On the other hand, Singapore has also hedged against confrontation by developing cooperative relationships with its neighbors (Tan Reference Tan2025). The Malaysian scholars Cheng-Chwee Kuik and Nur Shahadah Jamil (Reference Kuik and Jamil2024, 10) define hedging as “insurance-seeking behavior to minimise risks, maximise returns and maintain fallback positions, primarily through active neutrality, inclusive diversification and prudently adaptive strategies” (emphasis in original). Singapore’s most dramatic case of hedging is the announcement in January 2025 by Malaysia and Singapore of the creation of the Johor-Singapore Special Economic Zone. The Johor-Singapore Special Economic Zone is huge, five times the area of Singapore itself, and larger than Hong Kong and Shenzhen combined. By creating a shared growth center, Singapore achieves the hinterland it lost when it was expelled from Malaysia in 1965, and Malaysia benefits more directly from Southeast Asia’s neural center (Guild Reference Guild2025). The rationale of the project, however, is not developmental optimism, but rather proactive concern about increased competition in an uncertain global economy (Walker Reference Walker2025). Combinations of preparedness and hedging are also clear in Switzerland. Switzerland has universal but less demanding requirements of military service and a smaller per capita defense budget than Singapore, but it is well known for its concern for autonomy and caution in its institutional ties to its neighbors.
Partnerships are usually less dramatic than the Johor-Singapore Special Economic Zone. Partnerships are not alliances, but their formal displays of respect and their encouragement of connectivity increase the chances of a continuing relationship of mutual benefit. Vietnam’s comprehensive strategic partnerships with China, Russia, the US, India, Japan, and Australia, along with its membership in the Association of Southeast Asian Nations (ASEAN), are the opposite of the security provided by camp membership in the Cold War. Vietnam’s current bargaining position with each of its partners is strengthened by the diversity of its partnerships, and whatever crises the future might bring, Vietnam has access to, and presumptively friendly relationships with, the other major actors.
While the multinodal era may be fluid, the world system is not likely to return to a hegemonic era. Coercive diplomacy is not likely to be strategically successful in securing domination. However, continued diplomatic coercion could metastasize and produce a collective, securitized uncertainty dilemma. The most egregious recent example is the effect of Putin’s invasion of Ukraine on Europe. As global future prospects become more volatile, regional dynamics might produce tighter relationships in some cases and localized vortices of turmoil in others. Meanwhile, breaking the now 80-year-old taboo on the use of nuclear weapons is under active consideration in both the US (O’Doherty Reference O’Doherty2024; Sanger Reference Sanger2024) and Russia (Seddon Reference Seddon2024; Sokov Reference Sokov2024; Trenin, Avakyants, and Karaganov Reference Trenin, Avakyants and Karaganov2024). Schelling would want the risks of both escalation and proliferation to be taken more seriously.