Power in the Twenty-First Century

Chapter Opening

In the spring of 2023, a room in a nondescript Geneva conference center hosted simultaneous negotiations on three separate crises. Representatives from the United States, China, and the European Union were working through disagreements over semiconductor trade restrictions. A smaller group was coordinating humanitarian aid to a conflict zone where neither great power wanted direct involvement. And a third set of delegates was finalizing a digital infrastructure agreement that would determine which undersea cables, satellite systems, and data routing protocols would carry the internet traffic of billions of people for the next two decades. No single country dominated all three conversations. The United States brought unmatched military reach and the world's largest economy. China brought manufacturing capacity, infrastructure investment, and the sheer weight of 1.4 billion people and a government determined to shape the next century on its own terms. The European Union brought regulatory authority, market size, and a model of collective governance that neither superpower had yet managed to replicate. And none of the three could succeed without the others, or without the dozens of regional powers, international organizations, and non-state actors whose cooperation or opposition could determine outcomes.

This scene captures something essential about power in the twenty-first century. Power is still real. Some states command larger militaries, wealthier economies, more sophisticated technologies, and broader diplomatic networks than others. The hierarchy of global influence that emerged from the Cold War did not disappear. But the nature of that power — how it is accumulated, projected, contested, and constrained — has changed in important ways. The unipolar moment that followed the Soviet collapse in 1991, when the United States stood without serious peer competitors, proved shorter than many expected. By the 2010s and accelerating through the 2020s, the international system was moving toward genuine multipolarity, with China rising as an economic and military power of the first rank, India growing as an emerging giant, Russia asserting itself through military force and strategic disruption, and a constellation of regional powers, from Brazil and Turkey to Saudi Arabia and Indonesia, shaping events within their neighborhoods and beyond.

Power in the twenty-first century flows through multiple channels simultaneously. Hard power — military force, coercive economic leverage, sanctions, and territorial control — remains foundational. States that can credibly threaten or use force still occupy different positions in global affairs than states that cannot. But soft power — the ability to attract rather than coerce, to shape preferences through culture, education, media, technology standards, and institutional norms — has become increasingly important in an interconnected world where outright conquest is rare but influence competition is constant. Economic power, always important, has grown more complex: the ability to set the rules of trade, control critical supply chains, dominate financial systems, and shape the technological infrastructure on which global commerce runs is as consequential as any army.

The chapter that follows examines global power through multiple lenses. It begins by asking what power actually means in the contemporary world, and why that question is harder to answer than it might appear. It then traces the trajectories of the major powers: the United States, navigating relative decline from a position of immense strength; China, managing a transformation from regional power to global contender; India, leveraging demographic weight and democratic identity to claim a larger role; Russia, punching above its economic weight through military capability and strategic disruption; and the European Union, representing a novel experiment in collective governance that pools sovereignty to project influence. The chapter also examines regional powers in Africa, Latin America, and the Middle East, whose roles in global affairs have grown as the international system has become more complex and multipolar. It considers the institutions and frameworks, from the United Nations to the World Trade Organization to informal groupings like the G20, that structure how states interact.

Understanding power in the twenty-first century requires understanding history. The international order of the 2020s did not emerge from nowhere. It was built on the wreckage of World War II, shaped by the Cold War, reorganized by the Soviet collapse, and buffeted by the wars, financial crises, technological revolutions, and political shocks of the decades that followed. Great powers carry the legacies of their histories with them: the United States' deep suspicion of entanglement alongside its sense of global responsibility; China's century of humiliation and its determination never again to accept subordination; India's post-colonial insistence on strategic autonomy; Russia's imperial memory and its post-Soviet sense of diminishment.

Evidence for studying contemporary power comes from multiple sources, each with its own limits. Quantitative measures — military spending, GDP, nuclear warheads, trade flows, patent registrations, foreign aid disbursements — offer important baselines but can mislead. Qualitative evidence — diplomatic cables, leadership speeches, public opinion surveys, business investment patterns, cultural production — adds texture and nuance. Historians, political scientists, economists, and area specialists bring different methodological tools and different conceptual frameworks to the study of power, and no single discipline captures the whole picture.

This chapter belongs to a larger story that the textbook has traced across fifty-seven previous chapters: the long human struggle to organize societies, project authority across distance, manage conflict and cooperation, and adapt to changing environments and technologies. In that long view, the present era is remarkable for the scale at which power operates, the speed at which it can be projected or disrupted, and the range of actors — states, corporations, international organizations, social movements, criminal networks, terrorist groups — that participate in global affairs. The twenty-first century has not ended the competition for power. But it has transformed the terms on which that competition takes place.

Learning Objectives

Guiding World-History Questions

Historical Context

The international order of the twenty-first century was built on the foundations laid by the twentieth. The cataclysm of two world wars had discredited old European great-power imperialism and produced a new institutional architecture: the United Nations, the International Monetary Fund, the World Bank, and eventually the General Agreement on Tariffs and Trade and its successor, the World Trade Organization. These institutions encoded specific visions of international order, rooted in principles of sovereignty, territorial integrity, free trade, and multilateral governance — principles that served the interests of their architects, above all the United States, while also providing genuine public goods in the form of reduced interstate war, expanded trade, and frameworks for international cooperation.

The Cold War (roughly 1947–1991) organized global politics into a bipolar competition between the United States and the Soviet Union, each leading a bloc of allies, clients, and dependent states. This bipolar structure was unstable in many ways — proxy wars, arms races, ideological competition, and the permanent threat of nuclear annihilation were its most visible features — but it also provided a kind of predictability. Great-power conflict was channeled into indirect competition rather than direct confrontation, partly because the mutual destructiveness of nuclear war made direct conflict catastrophically costly.

The Soviet collapse of 1991 was one of the most dramatic shifts in global power of the twentieth century. An empire that had seemed permanent dissolved within months. The dissolution left the United States in an unprecedented position: the sole superpower in a world without a peer competitor. American military spending exceeded that of the next several countries combined. American financial institutions dominated global capital markets. The dollar served as the world's reserve currency. The 1990s saw a brief but genuine moment of American dominance without parallel in modern history.

But the unipolar moment was always more fragile than it appeared. The United States that emerged from the Cold War was powerful, but it faced structural challenges: a post-industrial economy with growing inequality, military commitments that strained resources, and an international order that other states increasingly felt excluded from shaping. The triumphalism of the 1990s — captured in Francis Fukuyama's famous claim about the "end of history," meaning the final triumph of liberal democracy and market capitalism — proved premature.

The September 11, 2001 terrorist attacks on the United States shattered the complacency of the 1990s and launched more than two decades of American military involvement in Afghanistan and the broader Middle East. The wars in Afghanistan (2001–2021) and Iraq (2003–2011) demonstrated both the reach of American military power and its limits. The financial and human costs of these wars weakened American domestic consensus, complicated alliances, and redirected resources from the investments in diplomacy, economic partnerships, and institutional engagement that might have better served American interests in a multipolar world.

Meanwhile, China was rising. The Chinese economy, already growing rapidly since Deng Xiaoping's reforms of the 1980s, expanded at extraordinary rates through the 1990s and 2000s. China entered the World Trade Organization in 2001, integrating into the global economy in ways that transformed both Chinese society and global manufacturing. India's trajectory was different but also significant: after the economic reforms of 1991, India liberalized its economy and began sustained growth that would make it, by the 2020s, one of the world's largest economies. Russia, by contrast, experienced a traumatic post-Soviet decade before Vladimir Putin's consolidation of power sought to reverse the humiliations of the 1990s and reassert Russia as a great power, principally through military force, energy leverage, and strategic disruption.

These trajectories — American primacy under stress, Chinese rise, Indian emergence, Russian reassertion, and the growing assertion of regional powers — produced the multipolar world of the 2020s. Understanding how power operates in this world requires examining each major actor in turn, then stepping back to see the larger pattern.

Chronology Preview

Regional Orientation

The United States and North America. The continental geography of North America — bordered by two oceans, sharing land frontiers only with Canada and Mexico, rich in agricultural land, resources, and navigable waterways — gave the United States strategic advantages that earlier analysts recognized as foundational. This geographic security has enabled a foreign policy that can choose when and where to engage internationally rather than defending a vulnerable perimeter.

China and East Asia. China occupies the eastern terminus of the Eurasian landmass, bordered by fourteen countries and facing the Pacific. The coastal regions, where China's industrial and commercial dynamism is concentrated, face the Taiwan Strait and the South China Sea, bodies of water that China increasingly regards as strategic priorities and that bring it into conflict with neighbors and with the United States.

South Asia. The Indian subcontinent is defined by the Himalayan barrier to the north, the Indian Ocean to the south, and the Indus and Ganges river systems that have supported dense settlement for millennia. India's geographic position makes it a natural hub of Indian Ocean trade and a pivot between East Asia, the Middle East, and Africa.

Russia and Eurasia. Russia spans eleven time zones, encompassing the world's largest land area. This vastness is both a source of power — immense natural resources, strategic depth — and a source of vulnerability, as governing such territory has historically strained Russian state capacity.

Europe. The European peninsula at the western end of Eurasia is dense with states, languages, and histories of conflict and cooperation. The European Union, centered on a Franco-German core and extending across twenty-seven member states, represents the most ambitious experiment in voluntary sovereignty pooling in world history.

Africa, Latin America, and the Middle East. These vast and internally diverse regions are home to most of the world's population and much of its resource wealth. They are not simply passive objects of great-power competition. Regional powers — Nigeria and South Africa in Africa, Brazil and Mexico in Latin America, Turkey, Saudi Arabia, Iran, and Israel in the Middle East — shape events within their neighborhoods and increasingly claim seats at global tables.

Major People, Groups, Places, and Polities

Core Vocabulary Preview

The following key terms appear throughout this chapter. Students should understand each term before proceeding to the main sections.

What Power Means in the Modern World

Power is one of the oldest concepts in political life. Thucydides, writing in the fifth century BCE about the Peloponnesian War between Athens and Sparta, observed that the strong do what they can while the weak suffer what they must. This brutal realism captured something true about interstate relations that has never entirely disappeared. States that command large armies, wealthy economies, and effective governments can shape the behavior of others in ways that smaller or poorer states cannot. This fundamental asymmetry runs through world history from the ancient empires examined in earlier chapters to the contemporary international system.

But Thucydides was only part of the story, even in his own time. Athens did not merely compel its allies through force. It attracted them through culture, commerce, and the prestige of its institutions. Throughout world history, the ability to build coalitions, command legitimacy, manage information, project cultural influence, and sustain economic vitality has complemented or sometimes substituted for raw military force.

In the twenty-first century, scholars and policymakers have developed more elaborate frameworks for understanding power. The political scientist Joseph Nye introduced the concept of "soft power" in the 1990s to capture the ways states attract and persuade rather than coerce. Soft power flows from cultural appeal, political values, and foreign policy perceived as legitimate and beneficial. The United States has long exercised enormous soft power through Hollywood films, popular music, university education, democratic ideals, and the global spread of American brands and consumer culture. But soft power is difficult to quantify, slow to build, and easy to squander. American soft power was substantially damaged by the invasion of Iraq in 2003, by the Abu Ghraib prison abuse scandal, and by the contradictions between American democratic rhetoric and the support for authoritarian allies.

Hard power — the ability to coerce through military force or economic pressure — remains foundational. States with large, modern, and capable militaries occupy different positions in international affairs than states without them. Nuclear weapons occupy a special category: their destructive potential is so catastrophic that their primary utility is deterrence rather than actual use. Conventional military forces are more regularly deployed, whether in direct combat operations, as demonstrations of resolve, or as assurance to allies.

Economic power has become increasingly sophisticated and central to international affairs. The ability to control access to critical resources, technology, and financial infrastructure gives states leverage that operates continuously, not only in wartime. American sanctions on Iran, North Korea, Russia, and Venezuela have been designed to coerce policy change by imposing economic costs. The dollar's role as the world's dominant reserve currency gives the United States extraordinary leverage: nearly all major international transactions pass through dollar-denominated systems, allowing the United States to impose financial sanctions that no other country can match.

A newer domain of power that has grown rapidly since the 1990s is cyber power. The ability to penetrate adversary computer networks, disrupt infrastructure, steal intellectual property, spread disinformation, and shape information environments gives states powerful tools that operate below the threshold of armed conflict. The norms and rules governing cyberspace remain contested and underdeveloped, making it one of the most unstable arenas of contemporary power competition.

Understanding power also requires attention to what scholars call structural power: the ability to shape the rules, norms, and institutions that govern how all states behave. The United States built the post-1945 international order, and in doing so created a world where the rules largely reflected American interests and values. China's challenge to American structural power — its alternative financial institutions, its Belt and Road investment networks, its push for a larger voice in international organizations — is as important as its military modernization.

Power in the contemporary world is therefore multidimensional. It includes military capability, economic weight, technological leadership, cultural influence, diplomatic skill, the ability to build and maintain coalitions, and the capacity to shape the rules and institutions of international life. No single metric captures it. And power that is effective in one domain may be limited or counterproductive in another.

The United States After the Cold War

The United States that emerged from the Cold War was, by most measures, the most powerful state in human history. Its military spending exceeded that of the next fifteen countries combined. Its economy was the world's largest. Its universities attracted talent from every corner of the world. Its popular culture spread globally through new communications technologies.

The 1990s produced what analyst Charles Krauthammer called the "unipolar moment" — a period when American primacy was so overwhelming that no other power or coalition of powers could seriously challenge it. In the 1990s, the United States intervened in Somalia, Haiti, Bosnia, and Kosovo, mostly on humanitarian grounds, with mixed results. It championed trade liberalization through NAFTA and the Uruguay Round that created the WTO. It managed the expansion of NATO eastward, absorbing former Warsaw Pact states over Russian objections.

The September 11, 2001 attacks transformed American foreign policy. The United States invaded Afghanistan in October 2001, toppling the Taliban government that had harbored al-Qaeda. The invasion of Iraq in March 2003 proved far more costly and controversial. Neither war produced the outcomes American planners had hoped for. Afghanistan returned to Taliban control when American forces withdrew in 2021, two decades after the initial invasion. Iraq remained deeply unstable, with continuing violence and Iranian influence substantially increased.

The Iraq War's costs extended well beyond the battlefield. It divided the Western alliance, generated massive anti-American sentiment across the Muslim world, and damaged American credibility as a champion of human rights and the rule of law. The financial costs — estimates range from two to seven trillion dollars — diverted resources from domestic investments.

The 2008 global financial crisis was the second major blow to American primacy in the early twenty-first century. The crisis originated in American financial markets but spread globally, producing the worst economic downturn since the Great Depression. It exposed the fragility of the deregulated financial model that Anglo-American economists had promoted globally since the 1980s, and gave China — which weathered the crisis relatively better — an opportunity to question the Washington Consensus.

American domestic politics grew increasingly polarized through the 2010s. The election of Barack Obama in 2008 carried enormous symbolic significance globally. Obama's foreign policy attempted to wind down the Bush-era wars, restore multilateral diplomacy, and "rebalance" toward Asia. The election of Donald Trump in 2016 represented a sharper break: Trump questioned the value of NATO, withdrew from the Trans-Pacific Partnership and the Paris Climate Agreement, and imposed tariffs on allies and adversaries alike.

Joseph Biden's presidency (2021–2025) attempted to restore traditional American alliance management and develop a coherent strategy for competition with China. The support for Ukraine following Russia's 2022 invasion represented the largest American military and financial commitment to a European conflict since the Cold War. But American politics remained deeply polarized, and the durability of Biden's commitments remained uncertain against the backdrop of ongoing domestic divisions.

The fundamental question about American power in the twenty-first century is not whether it has declined in absolute terms — American military and economic capacity has continued to grow — but whether it has declined relatively, as other powers, particularly China, have grown faster. Most analysts conclude that the unipolar moment is over. Managing this transition — from primacy toward leadership in a multipolar world — is the central foreign policy challenge of the era.

China's Rise

No development in twenty-first-century international affairs has been more consequential than the rise of China. In 1990, China's GDP, measured in purchasing power parity terms, was roughly comparable to Italy's. By 2023, it had grown to become the world's largest economy by the same measure, and the world's second-largest at market exchange rates. Chinese manufacturing had transformed global supply chains. Chinese infrastructure investment had financed ports, railways, roads, power plants, and digital infrastructure across Asia, Africa, the Middle East, Europe, and Latin America.

The roots of China's rise reach back to the late 1970s, when Deng Xiaoping launched the "Reform and Opening Up" policy. Deng's insight was that China needed economic growth above all, and that economic growth required engagement with global markets, foreign investment, and technological transfer rather than Maoist self-reliance. Special Economic Zones along China's southeastern coast attracted foreign manufacturing investment. Agricultural decollectivization released hundreds of millions of rural laborers who migrated to coastal factories and fueled the most rapid urbanization in human history.

China's accession to the World Trade Organization in 2001, after fifteen years of negotiations, was the decisive moment of integration into the global economy. Chinese exporters flooded global markets with competitively priced manufactured goods. American economists debated the "China shock" — the disruption to American manufacturing communities that trade with China produced.

China's political system remained authoritarian throughout this economic transformation. The Chinese Communist Party maintained its monopoly on political power, suppressed political opposition, controlled media and internet access, and used a combination of economic performance legitimacy and nationalist appeal to sustain popular support.

Xi Jinping, who became General Secretary of the Chinese Communist Party in 2012, represented a significant shift in Chinese foreign policy. His predecessors had followed Deng's admonition to "hide your strength and bide your time." Xi abandoned this posture. He launched the Belt and Road Initiative, asserted Chinese territorial claims in the South China Sea aggressively, and tightened political control at home, including intensified repression in Xinjiang and a crackdown on Hong Kong's autonomy.

The Belt and Road Initiative (BRI), launched in 2013, provided financing for infrastructure projects across more than 150 countries. Chinese state banks offered loans for ports, railways, highways, power plants, and telecommunications networks. The BRI has produced genuine infrastructure but has also generated controversy: concerns about debt sustainability, environmental and labor standards, and broader concerns about the political conditions and geostrategic advantages China sought through the program.

China's military modernization has been one of the most significant shifts in the global military balance since the Cold War. The People's Liberation Army has invested heavily in anti-access/area-denial capabilities designed to deny American naval and air forces the ability to operate freely in the Western Pacific. Taiwan remains the most sensitive flashpoint, with the United States maintaining a policy of strategic ambiguity toward its defense.

The domestic foundations of China's continued rise face real challenges. China's population is aging rapidly. Economic growth has slowed from the extraordinary rates of the 1990s and 2000s. Property sector debt has produced financial instability. Whether China can navigate these challenges while maintaining political stability, technological advancement, and strategic ambition remains one of the central questions of twenty-first-century world history.

India and South Asian Power

India in the twenty-first century is a rising power of a different kind than China. Where China's rise has been propelled by authoritarian efficiency, India's rise has been messier, more contested, and in many ways more genuinely representative of the country's billion-plus diverse population. India is the world's largest democracy, with a free press, independent judiciary, competitive multiparty elections, and civil society organizations that hold the state accountable in ways that have no equivalent in China.

India's economic growth accelerated sharply after the 1991 liberalization reforms initiated by Finance Minister (later Prime Minister) Manmohan Singh. Indian software and information technology services companies became globally significant. The Indian diaspora became increasingly prominent in business, academia, medicine, and politics.

India's demographic trajectory gives it distinctive long-term importance. India surpassed China as the world's most populous country in 2023, with a population of approximately 1.4 billion. Unlike China, India's population is relatively young, meaning that the working-age population will continue to grow through at least the 2040s, providing potential "demographic dividend" growth if the economy can generate sufficient employment.

India's foreign policy has been defined by the tradition of strategic autonomy inherited from Jawaharlal Nehru and the Non-Aligned Movement. India has generally refused to subordinate its independent judgment to the preferences of any great power. India maintained ties with Russia even after the 2022 Ukraine invasion, continuing to purchase Russian oil and military equipment, while simultaneously deepening its partnerships with the United States, Japan, and Australia through the Quad. India has fought multiple conflicts with Pakistan over Kashmir and maintains nuclear weapons as a deterrent against both Pakistan and China.

Under Prime Minister Narendra Modi (2014–present), India pursued a more assertive foreign policy alongside a muscular Hindu nationalism at home. Modi's government promoted India's interests more forcefully in international forums and sought permanent membership in the United Nations Security Council.

South Asia more broadly remains a region of significant tensions. The India-Pakistan rivalry has produced three major wars, and both countries now possess nuclear weapons. Pakistan has moved closer to China through the China-Pakistan Economic Corridor. Bangladesh, Sri Lanka, Nepal, and the Maldives have all become sites of competition between Indian and Chinese influence.

India's growing importance in the international system is recognized across the political spectrum. The Quad — formalized in 2021 — groups India with the United States, Japan, and Australia as a mechanism for coordinating on security, technology, climate, and other issues in the Indo-Pacific. But India has consistently resisted being defined primarily as a counterweight to China; Indian leaders regard strategic autonomy not as obstruction but as principle.

Russia and Post-Soviet Politics

Russia in the twenty-first century is a case study in the exercise of power from a position of structural weakness. Russia's economy is comparable in size to Italy's or South Korea's. Its population of approximately 145 million is aging and declining. And yet Russia has consistently punched above its economic weight in global affairs, using military force, energy leverage, nuclear deterrence, information warfare, and its veto power in the UN Security Council.

Vladimir Putin's domestic consolidation and foreign policy trajectory have been among the most consequential developments of the early twenty-first century. Putin came to power in 1999 and was elected President in 2000. His early years brought genuine improvements in living standards as oil revenues surged. But political consolidation accompanied economic success: independent television was brought under Kremlin control, oligarchs who challenged Putin's authority were exiled or imprisoned, and civil society was constrained.

Putin's foreign policy was defined by opposition to what he saw as Western arrogance — the expansion of NATO eastward, the support for "color revolutions" in Georgia and Ukraine, the bombing of Serbia in 1999, and the invasion of Iraq. In his 2007 Munich Security Conference speech, Putin openly challenged the American-led international order. The following year, Russia invaded Georgia in a brief August war, recognizing the breakaway regions of South Ossetia and Abkhazia.

The 2014 annexation of Crimea following Ukraine's Maidan Revolution represented a more dramatic escalation. Western governments imposed sanctions but declined to provide military assistance. Russia paid a significant economic price but retained Crimea and maintained frozen conflicts in eastern Ukraine.

The February 2022 full-scale invasion of Ukraine was the most dramatic Russian action of the era. Putin apparently believed that Ukraine's government would collapse quickly and that Western unity would fracture. Nearly all these calculations proved wrong. The Ukrainian military mounted fierce resistance. Western governments rallied in support of Ukraine with military aid, financial assistance, and sweeping economic sanctions on Russia, including freezing hundreds of billions of dollars of Russian central bank reserves and excluding major Russian banks from the SWIFT financial messaging system.

The war's outcome remains contested, but several consequences were already clear. Russian military weakness was exposed. Russia's international isolation deepened. Finland and Sweden, previously neutral, applied to join NATO — a dramatic expansion of the alliance that Putin's aggression had directly produced, the opposite of his strategic objective.

Russia's enduring assets include its nuclear arsenal, its permanent seat on the UN Security Council, its energy resources, and its geographical position at the center of Eurasia. But the trajectory of Russian power in the twenty-first century is likely to be one of relative decline rather than resurgence.

The European Union

The European Union represents one of the most ambitious and novel experiments in international governance in human history. Its origins lie in the determination of post-World War II European leaders to prevent the continent from destroying itself yet again through nationalist competition and war. The Coal and Steel Community (1951), the Common Market (1957), and successive treaty revisions culminating in the Maastricht Treaty (1993) created an institution unlike any other: a union of sovereign states that has pooled sovereignty in specific domains while retaining national sovereignty in others, particularly defense and foreign policy.

The EU's single market, encompassing more than 440 million consumers across 27 member states, is the world's largest trading bloc. This regulatory power, sometimes called the "Brussels Effect," means that multinational companies frequently adopt EU standards globally, because it is more efficient to produce one product to the highest standard than different products for different markets.

The EU's common currency, the euro, was adopted in 1999 and now covers 20 of the 27 EU member states. But when the 2008 financial crisis triggered a European sovereign debt crisis, countries like Greece, Portugal, Ireland, and Spain found themselves subjected to painful austerity programs, exposing fundamental tensions in the EU's design: a monetary union without a fiscal union.

The EU's foreign and security policy represents its most significant institutional weakness. The EU can project economic power with considerable effectiveness. But foreign policy requires treaty unanimity among member states, and defense policy remains firmly in national hands, with NATO providing the actual collective defense architecture.

Brexit — the United Kingdom's departure from the European Union, formally completed in January 2020 — was the most serious reversal the EU had faced. In practice, the EU absorbed Brexit without collapse, but Brexit removed an important counterweight to Franco-German dominance.

The EU has responded to the Russia-Ukraine war with more unity and determination than its skeptics expected. Sweeping sanctions on Russia required consensus and were achieved. EU energy policy pivoted rapidly to reduce dependence on Russian gas. These responses demonstrated that the EU could act with considerable effectiveness when its members perceived a common threat.

The EU faces ongoing internal tensions. Eastern and Central European member states, particularly Poland and Hungary, have clashed with Brussels over rule-of-law standards. Migration policy has been persistently contentious. And the question of EU strategic autonomy has become more pressing as American political reliability has come into question.

Regional Powers in Africa, Latin America, and the Middle East

The twenty-first century has seen growing assertion by regional powers whose roles in global affairs had previously been secondary to the major power competition. These states shape events within their regions in ways that global powers cannot ignore and increasingly project influence beyond their immediate neighborhoods.

Africa. Africa is home to 54 countries, more than 1.4 billion people, and enormous resource wealth. The African Union has pursued continental integration and attempted to develop African solutions to African problems, including peacekeeping operations in Somalia, Mali, and the Central African Republic. Nigeria, with approximately 220 million people, is Africa's most populous country and its largest economy; its cultural influence — Nollywood, Afrobeats music, diaspora communities — has made it a soft-power giant. South Africa, the continent's most industrialized economy, has used its position as a BRICS member to push for greater Global South voice in international institutions. China has become Africa's most significant trade partner and infrastructure investor; Russia has expanded its military presence in the Sahel; African leaders have increasingly insisted on being courted rather than commanded.

Latin America. Latin America is home to some 650 million people and major economies. Brazil is Latin America's giant: the world's tenth-largest economy, a democracy, a BRICS member, an agricultural superpower, and home to half the Amazon rainforest. Mexico, with 130 million people, navigates a complex relationship with its northern neighbor on trade, migration, security, and sovereignty. The United States has historically dominated Latin American politics, sometimes through direct intervention, producing deep suspicion of American motives that continues even when American policy is genuinely benign. Chinese investment and trade have expanded significantly in the region.

The Middle East. The Middle East is home to the world's largest proven oil and gas reserves and some of the world's most intractable conflicts. Israel, a small state of approximately nine million people, is the only established democracy in the Arab-majority Middle East and maintains a complex relationship with the United States. Israel's persistent conflict with the Palestinians — culminating in the devastating 2023–2024 Gaza war following Hamas's October 7, 2023 attack — has made it a central focus of regional and global politics. Saudi Arabia, the world's largest oil exporter, has used its hydrocarbon wealth to exercise enormous regional influence. Iran, since the 1979 Islamic Revolution, has pursued an anti-American, anti-Israeli foreign policy, developing a nuclear program and projecting power through proxy forces. Turkey has pursued an independent foreign policy while remaining a NATO member.

International Organizations and Diplomacy

The international organizations that structure global affairs were mostly built in the aftermath of World War II. The United Nations, founded in 1945, is the world's most universal forum for international diplomacy. The UN Security Council's power is constrained by the veto rights of its five permanent members — a structure that reflected the victors of World War II rather than the realities of the twenty-first century.

UN peacekeeping operations have deployed across the world with mixed records. The Bretton Woods institutions — the International Monetary Fund and the World Bank — have been central to managing the international economy since 1944, though their conditionality has been deeply controversial. The World Trade Organization, created in 1995, provides the framework for global trade rules, but its dispute settlement mechanism has been substantially weakened after the United States blocked appointments to its Appellate Body.

Informal groupings have become increasingly significant alongside formal institutions. The G7 coordinates positions among advanced democracies; the G20 has become the most significant forum for international economic coordination. BRICS — expanded in 2023–2024 to include Saudi Arabia, Iran, Ethiopia, Egypt, and the UAE — represents an alternative forum for Global South coordination, though it does not speak with one voice and lacks the institutional development to serve as a full alternative to Western-led institutions.

The future of international institutions is one of the central questions of the contemporary era. There is genuine tension between the demands of effective global governance and the reality of great-power competition that makes cooperation difficult and trust scarce.

Hard Power, Soft Power, and Economic Influence

The twenty-first century has provided abundant evidence for both the continuing importance of hard power and its limits. Russia's invasion of Ukraine demonstrated that states will still use military force to pursue territorial objectives. But the limits of hard power have also been repeatedly demonstrated: the United States spent twenty years and trillions of dollars in Afghanistan without achieving a stable outcome, and Russian forces encountered fierce Ukrainian resistance that exceeded Russian planners' expectations by enormous margins.

Soft power has also been severely tested. Chinese cultural production, Russian state media, and Saudi cultural investment have all challenged what was once uncontested American cultural dominance. The United States has also damaged its own soft power through self-inflicted wounds: Abu Ghraib, the global financial crisis, and the January 6, 2021 assault on the US Capitol, which shocked audiences around the world.

Economic influence has emerged as perhaps the most consequential domain of twenty-first-century power competition. American sanctions have become a primary foreign policy tool. China's economic statecraft — the Belt and Road, selective market access, supply chain dependencies — has become increasingly sophisticated. American-led technology sanctions restricting China's access to advanced semiconductors represent a new dimension of economic competition.

The twenty-first century has also revealed the vulnerability of complex global supply chains. The semiconductor shortage of 2020–2023 exposed the degree to which the global electronics industry depended on a small number of foundries, primarily in Taiwan, driving massive government investment in domestic semiconductor manufacturing. The concept of "economic security" has replaced the older liberal economic consensus that maximum openness and integration served everyone's interests.

Chapter Review and Global Power Map Study

This section synthesizes and reviews the chapter's material through the structured study features that follow: a timeline study of the shifting international order, a map study of global power distributions, a primary source window, and a full set of review materials.

Everyday Life and Social History

Living in the Age of Global Power Competition. Grand narratives of great-power competition can obscure the everyday ways in which international power dynamics shape ordinary lives. A semiconductor engineer in Taiwan works at the intersection of global power competition: her company's independence is central to strategies for managing Chinese power, and the threats and assurances directed at Taiwan shape whether she can plan a career at home. A Congolese mining worker in the Katanga copper belt produces the cobalt that flows into global battery supply chains, laboring under conditions his wages cannot escape even as great powers compete over control of critical minerals. A university student in Lagos, Nairobi, or Jakarta navigates a politicized landscape of Chinese, American, and European scholarships and cultural institutions — a low-intensity version of the soft-power competition that great powers conduct at the level of universities and media. These individual choices, multiplied across hundreds of millions of people in the Global South, will shape the twenty-first century in ways no military campaign or trade agreement can determine alone.

Environment and Technology

The Energy Transition as Geopolitical Transformation. The global shift from fossil fuels to renewable energy is reshaping which resources matter and which countries benefit. The twentieth-century energy economy was built on oil and gas, and countries that controlled these resources — Saudi Arabia, Russia, Iran — derived enormous leverage. The energy transition disrupts this geography: solar and wind resources are far more widely distributed than oil and gas. But the transition creates new resource dependencies rather than eliminating all dependencies — electric vehicle batteries require cobalt, lithium, nickel, and rare earths, and China has positioned itself to dominate these new supply chains, processing the majority of the world's cobalt and lithium and manufacturing most of the world's solar panels and battery cells. This has triggered American, European, and allied concern about trading oil dependence for clean-energy dependence on China. Climate change itself is a source of geopolitical stress, as countries most vulnerable to its impacts demand action from major emitters who have been slow to deliver commitments sufficient to the 1.5°C warming limit scientists consider the safer boundary.

Research or Library Extension