Thucydides' Account of War Is as Timely as It Is Misunderstood
The most widely cited ancient text in foreign policy is also the most widely misread. A new essay reframes Thucydides not as a realist who believed might makes right — but as a diagnostician of the self-deception that leads states into wars they cannot win.
TL;DR
- David Polansky and Daniel Schillinger argue in Aeon (3 August 2026) that Thucydides' History of the Peloponnesian War has been systematically misread as an endorsement of realist power politics.
- The essay's core claim: Thucydides was not arguing that "the strong do what they can and the weak suffer what they must" — he was documenting the self-deception and hubris that led Athens to catastrophic defeat.
- The essay explicitly connects this reading to the ongoing US–Iran war, noting that "those who embarked on the war had outsized expectations of success at minimal cost."
- The piece also engages Mark Carney's invocation of the Melian Dialogue at Davos, grounding the ancient text in a live political moment.
- The essay is an opinion piece, not news. Its signal comes from the cross-layer resonance with the week's dominant hard-news story — the US–Iran conflict — and from the durable insight it offers about how states talk themselves into disaster.
What Happened
On 3 August 2026, Aeon — the nonprofit digital magazine of ideas — published an essay by David Polansky and Daniel Schillinger titled "Thucydides the perspicacious" (standfirst: "Far from thinking that 'might makes right', the great historian's analysis of war identifies a vice common to all states").
Polansky is a writer and political theorist based in Toronto whose work has appeared in the Wall Street Journal, Washington Post, Globe and Mail, and Foreign Policy. Schillinger is a lecturer in political science and a senior fellow at the Center for Civic Thought at Yale University. The essay was edited by Sam Haselby for Aeon (Aeon, 3 Aug 2026).
The essay's central argument is that Thucydides has been badly misread by generations of foreign policy thinkers — particularly self-described "realists" who invoke the Melian Dialogue ("the strong do what they can and the weak suffer what they must") as though it were Thucydides' own view rather than a speech he attributed to the Athenian envoys, whose city-state subsequently lost the war.
Polansky and Schillinger argue that Thucydides' actual project was the opposite: a meticulous documentation of how Athens talked itself into a disastrous expedition against Syracuse, driven by overconfidence, flawed intelligence, and a refusal to hear contrary evidence. The History is not a manual for realist statecraft. It is a case study in the psychology of imperial overreach.
The essay closes with a direct pivot to the present:
"Observing the United States' present conflict with Iran, which has increasingly severe implications for the global economy, it is evident that those who embarked on the war had outsized expectations of success at minimal cost…"
This is not a passing reference. It is the essay's destination — the point toward which the entire argument has been building. The authors are using Thucydides to diagnose a live conflict, and their diagnosis is that the United States is repeating Athens' error.
What It Actually Means
The Misreading That Became Doctrine
The Melian Dialogue is one of the most cited passages in the history of international relations. It appears in the opening weeks of nearly every university course on realism. It is invoked by policymakers who want to sound hard-headed. It was cited by Mark Carney at Davos — a moment the essay explicitly engages.
The standard reading goes like this: the Athenians tell the Melians that justice only applies between equals, and that the strong rule the weak because that is the natural order of things. The Athenians then slaughter the Melian men and enslave the women and children. This is taken as Thucydides' own view of how the world works — a bleak, unsentimental realism that sees power as the only currency that matters.
Polansky and Schillinger argue that this reading gets Thucydides exactly backwards. The Melian Dialogue is not the moral of the story. It is the setup. Athens' behaviour at Melos is the high-water mark of its imperial arrogance — and the History then documents, in painstaking detail, how that arrogance led directly to the Sicilian Expedition, the destruction of the Athenian fleet, and the eventual surrender of Athens to Sparta.
Thucydides was not endorsing the Athenian position. He was documenting the psychology that produced it — and the consequences that followed.
The Self-Deception Mechanism
The essay identifies a specific pattern in Thucydides' account that the authors argue is the real lesson of the History: states embarking on war systematically overestimate their chances of quick, low-cost victory and systematically underestimate the resilience, adaptability, and resolve of their adversaries.
This is not a failure of intelligence. It is a failure of cognition. The Athenian assembly that voted for the Sicilian Expedition did not lack information about Sicily's size, wealth, and military capacity. Thucydides tells us that Nicias explicitly warned the assembly about these things. The assembly voted for the expedition anyway — because the prospect of glory and plunder was more psychologically compelling than the dry arithmetic of military logistics.
The authors call this "faux-realism" — the posture of hard-headed calculation that is actually driven by wishful thinking. The tough talk ("the strong do what they can") is not a description of reality. It is a performance that the speaker believes because believing it feels better than confronting the actual odds.
The Iran War Connection
The essay's pivot to the US–Iran war is brief but devastating. The authors do not need to elaborate because the parallel is obvious to anyone who has been following the conflict:
- The war was launched in February 2026 with predictions of a short campaign.
- Five months later, the US has burned through "virtually all" of its long-range precision munitions (Reuters, 4 Aug 2026 — the top World story in this sweep).
- Iran's air defences, supplemented by China and Russia, have not been fully suppressed.
- The Strait of Hormuz remains contested, with global economic implications.
- A June ceasefire (the Islamabad memorandum) has not held.
The "outsized expectations of success at minimal cost" that the authors identify as the Thucydidean pattern is not a theoretical construct. It is a description of what actually happened between February and August 2026.
Hype Deconstruction
This is an essay, not a news story. It does not break new facts. Its value is analytical — it provides a framework for understanding events that are already in the news. The signal score of 7 reflects the quality of the analysis and its timeliness, not its novelty as a news event.
The Thucydides connection is not original to these authors. The idea that the History is a study in hubris rather than a realist manual has been advanced by classicists and political theorists for decades. What Polansky and Schillinger add is a crisp, accessible synthesis that is explicitly wired to the present moment.
The essay does not predict outcomes. It diagnoses a pattern. Whether the US–Iran war follows the Athenian trajectory to catastrophic defeat — or whether some off-ramp is found — is not something the essay attempts to forecast.
The "faux-realism" framing is a polemic. It is aimed at a specific target — the foreign policy establishment that invokes Thucydides to justify hard-power approaches while ignoring what Thucydides actually wrote about how those approaches end. Readers who are committed to the realist tradition will find the essay provocative rather than persuasive.
Stakeholder Landscape
Foreign policy practitioners: The essay is aimed at you. Its argument — that the "realist" invocation of Thucydides is a misreading that enables the very overreach Thucydides warned against — is a direct challenge to a generation of foreign policy thinking. Whether you accept the argument or not, it demands a response.
Students of international relations: The essay is an excellent entry point into the debate about what Thucydides actually meant. It is accessible without being simplistic. It connects ancient text to live events in a way that makes both more intelligible.
Citizens trying to understand the Iran war: The essay offers a lens that is more useful than most daily news coverage. It does not tell you what happened today. It tells you something about the pattern that produced what happened today — and that pattern is durable enough to apply to the next conflict, and the one after that.
The authors (Polansky and Schillinger): The essay positions them as public intellectuals capable of bridging classical scholarship and contemporary foreign policy analysis. The Aeon platform gives them reach beyond academic journals. The explicit engagement with the Iran war gives the essay news-cycle relevance that most classical reception pieces lack.
Mark Carney and the Davos set: The essay's engagement with Carney's invocation of the Melian Dialogue is respectful but pointed. The implication is that citing Thucydides without understanding what Thucydides actually argued is not intellectual sophistication — it is the very faux-realism the History diagnoses.
Cross-Layer Implications
The psychology of decision-making: The essay's core insight — that decision-makers systematically overestimate the probability of quick, low-cost victory — is not limited to foreign policy. It applies to corporate strategy, technology adoption, and personal decision-making. The mechanism is the same: the human mind prefers compelling narratives to dry arithmetic, and it will construct elaborate rationalisations to avoid confronting unfavourable odds.
The role of classical texts in public discourse: The essay is an argument for reading primary sources carefully rather than relying on second-hand summaries. The Melian Dialogue is famous. The Sicilian Expedition — which is the actual climax of Thucydides' narrative — is far less widely known. The essay suggests that this is not an accident: the Melian Dialogue is comforting to realists; the Sicilian Expedition is not.
The limits of expertise: Thucydides' account of the Athenian assembly's decision to invade Sicily is a case study in how expert warnings can be overridden by popular enthusiasm. Nicias — the experienced general who warned against the expedition — was not ignored because his analysis was wrong. He was ignored because his analysis was unwelcome. The dynamic is familiar to anyone who has watched expert warnings about military interventions, financial bubbles, or technology risks get steamrolled by institutional momentum.
The durability of patterns: The essay's most unsettling implication is that the pattern Thucydides identified — overconfidence, self-deception, catastrophic overreach — is not a bug in human decision-making that can be fixed with better information or smarter people. It is a feature of how human beings make decisions under conditions of uncertainty and group pressure. If Thucydides was right, the pattern will repeat.
What This Means for You
For readers following the Iran war: This essay will make you smarter about the conflict than any single news article. It will not tell you what happens next. It will tell you something about the pattern that produced the conflict — and that pattern is more durable than any particular military development.
For decision-makers in any domain: The essay's diagnosis of "faux-realism" — the posture of hard-headed calculation that masks wishful thinking — is worth sitting with. Ask yourself: what is the equivalent of the Sicilian Expedition in your organisation? What is the project that everyone knows is a bad idea but that no one can stop because stopping it would require admitting that the assumptions behind it were wrong?
For students and lifelong learners: Read the essay. Then read Thucydides. The History of the Peloponnesian War is not long, and it is not difficult. It is one of the few books that genuinely deserves its reputation. Polansky and Schillinger's essay is a good companion — it will help you see what Thucydides was actually doing rather than what generations of commentators have said he was doing.
For everyone else: The essay is a reminder that the oldest texts are sometimes the most useful for understanding the newest events. The pattern of overconfidence leading to disaster did not begin with the US–Iran war, and it will not end with it. Understanding the pattern is the first step toward recognising it — in your own thinking and in the decisions made by the institutions you depend on.
Uncertainty Ledger
- Is the Thucydides reading correct? The essay's interpretation is well-supported by the text but not universally accepted. Some classicists argue that Thucydides' own views are more ambiguous than the essay suggests. The debate is live and unresolved.
- Does the Athens–US parallel hold? Historical analogies are always imperfect. The US is not Athens, Iran is not Syracuse, and the strategic context is different in ways that matter. The essay uses the parallel as a diagnostic lens, not a predictive model — but readers should be cautious about drawing direct conclusions.
- What would change the analysis? A durable ceasefire in the Iran war would weaken the essay's immediate relevance but not its core argument about the pattern of self-deception in state decision-making. A US defeat — however defined — would strengthen the parallel considerably.
Bottom Line
Polansky and Schillinger have written the right essay at the right moment. Their reframing of Thucydides — from realist icon to diagnostician of imperial self-deception — lands directly on the week's most significant hard-news story. The essay does not break news. It does something more valuable: it gives the reader a framework for understanding the news that will still be useful when this week's headlines are forgotten. The pattern Thucydides identified 2,400 years ago is visible in the US–Iran war. Recognising it is the first step toward not repeating it.
Sources:
- Aeon, David Polansky and Daniel Schillinger, "Thucydides the perspicacious," 3 August 2026 (Tier 2 — reputable ideas publication)
- Polansky, David — author verification via X/Twitter post confirming co-authorship with Schillinger for Aeon (Tier 3)
