Contemporary America, with its unparalleled armaments and ambition, seems to many commentators a new empire. Others angrily reject the designation. What stakes would being an empire have for our identity at home and our role abroad?

A preeminent American historian addresses these issues in light of the history of empires since antiquity. This elegantly written book examines the structure and impact of these mega-states and asks whether the United States shares their traits and behavior. Eschewing the standard focus on current U.S. foreign policy and the recent spate of pro- and anti-empire polemics, Charles S. Maier uses comparative history to test the relevance of a concept often invoked but not always understood. Marshaling a remarkable array of evidence—from Roman, Ottoman, Moghul, Spanish, Russian, Chinese, and British experience—Maier outlines the essentials of empire throughout history. He then explores the exercise of U.S. power in the nineteenth and twentieth centuries, carefully analyzing its economic and strategic sources and the nation’s relationship to predecessors and rivals.

To inquire about empire is to ask what the United States has become as a result of its wealth, inventiveness, and ambitions. It is to confront lofty national aspirations with the realities of the violence that often attends imperial politics and thus to question both the costs and the opportunities of the current U.S. global ascendancy. With learning, dispassion, and clarity, Among Empires offers bold comparisons and an original account of American power. It confirms that the issue of empire must be a concern of every citizen.

Thomas Hobbes laid the theoretical groundwork of the nation-state in Leviathan, his tough-minded treatise of 1651. Leviathan 2.0 updates this classic account to explain how modern statehood took shape between the mid-nineteenth and mid-twentieth centuries, before it unraveled into the political uncertainty that persists today.

Modern states were far from immune to the modernizing forces of war, technology, and ideology. From 1845 to 1880, the United States, Canada, Mexico, and Argentina were all reconstituted through territorial violence. Europe witnessed the unification of Germany and Italy, while Asian nations such as Japan tried to mitigate foreign incursions through state-building reforms. A global wave of revolution at the turn of the century pushed the modernization process further in China, Russia, Iran, and Ottoman Turkey. By the late 1930s, with the rise of the Soviet Union and Nazi Germany, the momentum of history seemed to shift toward war-glorifying totalitarian states. But several variants of the modern state survived World War II: the welfare states of Western democracies; single-party socialist governments; and governments dominated by the military, especially prevalent in Latin America, Asia, and the Middle East.

Toward the end of the twentieth century, all of these forms stood in growing tension with the transformative influences of globalized capitalism. Modern statehood recreated itself in many ways, Charles S. Maier concludes, but finally had to adopt a precarious equilibrium with ever more powerful economic forces.

Throughout history, human societies have been organized preeminently as territories—politically bounded regions whose borders define the jurisdiction of laws and the movement of peoples. At a time when the technologies of globalization are eroding barriers to communication, transportation, and trade, Once Within Borders explores the fitful evolution of territorial organization as a worldwide practice of human societies. Master historian Charles S. Maier tracks the epochal changes that have defined territories over five centuries and draws attention to ideas and technologies that contribute to territoriality’s remarkable resilience.

Territorial boundaries transform geography into history by providing a framework for organizing political and economic life. But properties of territory—their meanings and applications—have changed considerably across space and time. In the West, modern territoriality developed in tandem with ideas of sovereignty in the seventeenth century. Sovereign rulers took steps to fortify their borders, map and privatize the land, and centralize their sway over the populations and resources within their domain. The arrival of railroads and the telegraph enabled territorial expansion at home and abroad as well as the extension of control over large spaces. By the late nineteenth century, the extent of a nation’s territory had become an index of its power, with overseas colonial possessions augmenting prestige and wealth and redefining territoriality.

Turning to the geopolitical crises of the twentieth century, Maier pays close attention to our present moment, asking in what ways modern nations and economies still live within borders and to what degree our societies have moved toward a post-territiorial world.

A new and original history of the forces that shaped the twentieth and twenty-first centuries.

We thought we knew the story of the twentieth century. For many in the West, after the two world conflicts and the long cold war, the verdict was clear: democratic values had prevailed over dictatorship. But if the twentieth century meant the triumph of liberalism, as many intellectuals proclaimed, why have the era’s darker impulses—ethnic nationalism, racist violence, and populist authoritarianism—revived?

The Project-State and Its Rivals offers a radical alternative interpretation that takes us from the transforming challenges of the world wars to our own time. Instead of the traditional narrative of domestic politics and international relations, Charles S. Maier looks to the political and economic impulses that propelled societies through a century when territorial states and transnational forces both claimed power, engaging sometimes as rivals and sometimes as allies. Maier focuses on recurring institutional constellations: project-states including both democracies and dictatorships that sought not just to retain power but to transform their societies; new forms of imperial domination; global networks of finance; and the international associations, foundations, and NGOs that tried to shape public life through allegedly apolitical appeals to science and ethics.

In this account, which draws on the author’s studies over half a century, Maier invites a rethinking of the long twentieth century. His history of state entanglements with capital, the decline of public projects, and the fragility of governance explains the fraying of our own civic culture—but also allows hope for its recovery.

From the vantage point of the United States or Western Europe, the 1970s was a time of troubles: economic “stagflation,” political scandal, and global turmoil. Yet from an international perspective it was a seminal decade, one that brought the reintegration of the world after the great divisions of the mid-twentieth century. It was the 1970s that introduced the world to the phenomenon of “globalization,” as networks of interdependence bound peoples and societies in new and original ways.

The 1970s saw the breakdown of the postwar economic order and the advent of floating currencies and free capital movements. Non-state actors rose to prominence while the authority of the superpowers diminished. Transnational issues such as environmental protection, population control, and human rights attracted unprecedented attention. The decade transformed international politics, ending the era of bipolarity and launching two great revolutions that would have repercussions in the twenty-first century: the Iranian theocratic revolution and the Chinese market revolution.

The Shock of the Global examines the large-scale structural upheaval of the 1970s by transcending the standard frameworks of national borders and superpower relations. It reveals for the first time an international system in the throes of enduring transformations.

Bringing his book up to date with reflections since its first publication a decade ago, Charles S. Maier writes that the historians’ controversy gave Germany a chance to air the issues immediately before unification and, in effect, the controversy substituted for the constitutional debate that a united Germany never got around to holding. The premises of national community, whether formulated in terms of legal culture, inherited collective responsibilities, or patriotic habits of the heart, had already been subjects for vigorous discussion.

Between 1870 and 1945, advances in communication and transportation simultaneously expanded and shrank the world. New technologies erased distance and accelerated the global exchange of people, products, and ideas on an unprecedented scale. A World Connecting focuses on an era when growing global interconnectedness inspired new ambitions but also stoked anxieties and rivalries that would erupt in two world wars—the most destructive conflicts in human history.

In five interpretive essays, distinguished historians Emily S. Rosenberg, Charles S. Maier, Tony Ballantyne, Antoinette Burton, Dirk Hoerder, Steven C. Topik, and Allen Wells illuminate the tensions that emerged from intensifying interconnectedness and attempts to control and shape the effects of sweeping change. Each essay provides an overview of a particular theme: modern state-building; imperial encounters; migration; commodity chains; and transnational social and cultural networks. With the emergence of modern statehood and the fluctuating fate of empires came efforts to define and police territorial borders. As people, products, capital, technologies, and affiliations flowed across uneasily bounded spaces, the world both came together and fell apart in unexpected, often horrifying, and sometimes liberating ways.

A World Connecting goes beyond nations, empires, and world wars to capture the era’s defining feature: the profound and disruptive shift toward an ever more rapidly integrating world.