Zones of Peace vs. Zones of Turmoil: Dividing the Post-Cold War World

When the Berlin Wall fell in 1989 and the Soviet Union collapsed two years later, scholars scrambled to make sense of a world no longer organised around the rivalry between Washington and Moscow. The old map of “capitalist West versus communist East” had dissolved overnight. Into this confusion stepped two American thinkers, Max Singer and Aaron Wildavsky, with a deceptively simple idea: the world had not become uniform, but had split into two very different halves. One half was peaceful, wealthy, and democratic. The other remained poor, unstable, and trapped in cycles of conflict. They called these the zones of peace and the zones of turmoil. This framework remains one of the most discussed attempts to describe the post-Cold War order, and understanding it tells us a great deal about how power and prosperity are distributed today.

The origins of the theory 🔗

In their 1993 book The Real World Order: Zones of Peace/Zones of Turmoil, Singer and Wildavsky argued that the world order would be different from and better than the one familiar to earlier generations. Their reasoning was striking. For the first time in recorded history, a small group of great democracies held most of the world’s economic and military power. These nations did not fear war with one another, and their disagreements, however loud, would stay confined to trade and economics rather than spilling into armed conflict.

The authors were writing against the backdrop of a hopeful moment. The twentieth century had been catastrophically violent, with tens of millions killed in wars and even more by their own governments. Yet Singer and Wildavsky approached the future with what reviewers called a disconcerting optimism, suggesting that the spread of democracy could eventually pull the entire planet toward peace and prosperity. Their key contribution was to insist that no earlier description of the post-Cold War world had worked, because none had divided the apparent chaos into its two natural parts.

Why divide the world into two? 🔗

The central insight was that the planet could no longer be understood through a single lens. Treating all nations as players in one balance-of-power game missed the obvious fact that some regions had escaped that game entirely. By splitting the world in two, Singer and Wildavsky could explain why parts of the globe seemed stable and prosperous while others remained mired in violence and underdevelopment. This was not merely a description of geography but of two fundamentally different ways that international politics operated.

What defines the zone of peace? 🔗

The zone of peace, in this model, includes the wealthy industrial democracies: the United States, Canada, Western Europe, Japan, Australia, and similar states. According to the authors, this zone contained roughly 15 percent of the world’s population but most of its wealth. The defining feature of this zone is not just affluence but a particular kind of political relationship between its members.

Within this zone, the old rules of power politics no longer apply. The logic of hegemony, military alliances built to balance against rivals, and above all war between major states had, in the authors’ view, ceased to operate. Rich democracies might be fierce economic competitors and may quarrel bitterly over trade, but they do not send armies against each other. This claim rests on a broader body of thinking known as democratic peace theory.

The link to democratic peace theory 🔗

The idea that democracies do not go to war with one another has deep roots. It traces back to the philosopher Immanuel Kant and his essay on perpetual peace, which argued that states with representative governments and a separation of powers would be naturally inclined toward peace. The American scholar Michael Doyle revived this argument in the 1980s, and after the Cold War it became one of the most popular subjects of research in international relations.

What the research has shown is subtle. It is not that wars involving non-democracies are common while others are rare. Rather, interstate war is uncommon in general, but war between two democracies is even rarer still. This finding gave Singer and Wildavsky’s framework its theoretical backbone. If democracies genuinely avoid fighting each other, then a growing cluster of democratic states forms an expanding island of stability, a zone where military conflict becomes almost unthinkable.

What defines the zone of turmoil? 🔗

The zone of turmoil covers the much larger remainder of the planet: most of Asia, Africa, and Latin America at the time of writing. Here, the authors argued, the future would look much like the past, at least for a while. These regions were marked by poverty, ongoing conflict, weak institutions, and the difficult process of economic and political development. The patterns of war, instability, and authoritarian rule that had shaped earlier centuries continued to operate.

This was the part of the thesis that disturbed many readers. The framework implied a sharp hierarchy, with a fortunate minority enjoying security and wealth while a vast majority struggled. As one later commentator noted, the book was eventually relegated to the occasional footnote partly because its central thesis offended some readers: the suggestion that the route out of chaos was simply for turmoil nations to adopt the culture and institutions of the successful democracies.

A path between the zones 🔗

Importantly, Singer and Wildavsky did not see the division as permanent. They believed that the major democracies shared an interest in spreading democracy worldwide and should actively encourage other nations to join the zone of peace. Their concrete proposals included establishing a United Nations Democratic Caucus, increasing foreign assistance, and limiting arms transfers to non-democratic states. The hope was that economic development and the example of prosperous democracies would gradually draw turmoil nations across the divide. In this sense the theory was optimistic: the zone of peace was meant to grow.

How it compares with other post-Cold War theories 🔗

Singer and Wildavsky were not alone in trying to map the new world. Their framework sits alongside two far more famous theses, and comparing the three helps clarify what is distinctive about the zones model.

Fukuyama and the end of history 🔗

Francis Fukuyama argued that the collapse of communism marked the triumph of liberal democracy as the final form of human government. In his vision, the entire world would gradually converge on democracy and free markets. Singer and Wildavsky shared Fukuyama’s optimism about democracy but were more cautious. They did not claim history had ended; they accepted that a large zone of turmoil would persist for a long time, even as the zone of peace expanded.

Huntington and the clash of civilizations 🔗

Samuel Huntington offered the gloomiest forecast. He argued that future conflict would be driven not by ideology or economics but by culture, with the fault lines between civilizations becoming the sites of rupture in the post-Cold War order. Where Fukuyama saw convergence and Singer and Wildavsky saw a hopeful division, Huntington saw enduring cultural conflict that no amount of democratic spread could erase. The three theories together capture the spectrum of how scholars interpreted the same set of events in the early 1990s.

Criticisms of the model 🔗

The zones framework has attracted serious criticism, much of which remains relevant for students assessing its value.

First, the model is often called Eurocentric. By placing wealthy Western democracies in the zone of peace and almost everyone else in the zone of turmoil, it risks treating the Western experience as the standard that all other societies must aspire to. This framing can downplay the role that colonialism, unequal trade, and external interference played in creating the very instability it describes.

Second, the underlying democratic peace theory faces its own challenges. Critics point out that the correlation between democracy and peace may reflect the distribution of power rather than regime type. During the Cold War, Western democracies stayed at peace partly because they were allied against a common Soviet threat and held together by American dominance, not simply because they were democratic. If that hegemony fades in a more multipolar world, the peace among democracies might prove less durable than the theory assumes.

Third, scholars have noted that peaceful regions can form among non-democracies too. The political scientist Arie Kacowicz documented zones of peace in South America since the late 1880s and among West African states since their independence, even though these regions did not sustain Western-style democratic regimes. This suggests that democracy alone does not explain why some regions avoid war, weakening the neat link between the zone of peace and democratic government.

Does the model still hold today? 🔗

Decades later, the framework looks both prescient and flawed. Some predictions held up well. The major industrial democracies have indeed avoided war with one another, and the European Union turned former rivals into close partners. Yet several developments have complicated the picture.

The most dramatic challenge came with Russia’s full-scale invasion of Ukraine in 2022. A large-scale war returned to the European continent, the supposed heartland of the zone of peace, reminding everyone that the boundary between the zones is neither fixed nor secure. Interestingly, research found that the invasion produced a “rally for democracy,” an intensification of a longer-term trend of democratic allegiance in response to the rise of authoritarian great powers. This cuts both ways: the war threatened the zone of peace while also strengthening commitment to its values.

At the same time, the phenomenon of democratic backsliding has shaken confidence in the model. The assumption that democracy steadily expands has not held; in recent years democracy has been on the decline in many countries, including some inside the supposed zone of peace. If established democracies can erode and authoritarian powers can grow stronger, then the boundary between the two zones becomes blurry rather than clear. The simple, two-part division that gave the theory its explanatory power now struggles to capture a world where the trends run in several directions at once.

Why the framework still matters 🔗

Even with its flaws, the zones model remains a useful teaching tool and a starting point for debate. It draws attention to a real and stubborn feature of global politics: the deep inequality between regions that enjoy security and prosperity and those that do not. It forces us to ask why some parts of the world have escaped war while others remain trapped by it, and whether democracy, wealth, alliances, or simple historical luck best explains the difference. For anyone studying the post-Cold War order, the framework offers a clear, if contested, map of how stability and disorder are distributed across the globe.

What do you think? Does dividing the world into a zone of peace and a zone of turmoil reveal genuine patterns in global politics, or does it oversimplify a far messier reality? And if the boundary between the zones is shifting today, which factors do you believe matter most in deciding whether a region enjoys peace or descends into conflict?

References

1. https://contemporarythinkers.org/aaron-wildavsky/book/the-real-world-order-zones-of-peace-zones-of-turmoil/
2. https://www.amazon.com/Real-World-Order-Zones-Turmoil/dp/0934540985
3. https://www.commentary.org/articles/patrick-glynn/the-real-world-order-by-max-singer-and-aaron-wildavsky/
4. https://www.britannica.com/topic/democratic-peace
5. https://theconversation.com/zones-of-peace-and-turmoil-40438
6. https://www.amazon.com/Real-World-Order-Zones-Turmoil/dp/0934540993
7. https://foreignpolicy.com/2025/02/21/samuel-huntington-fukuyama-clash-of-civilizations/
8. https://fiveable.me/theories-of-international-relations/unit-2/democratic-peace-theory/study-guide/cYkE1924R0jVgF6l
9. https://sunypress.edu/Books/Z/Zones-of-Peace-in-the-Third-World2
10. https://www.cambridge.org/core/journals/perspectives-on-politics/article/rally-for-democracy-authoritarian-resurgence-ukraine-and-global-democratic-allegiance/2A37434F3B51FFCDCE76F4BC41D951E0