Thucydides Trap
Hegemonic Transition Theory and US-China Dynamics
The Thucydides Trap, a concept popularised by American political scientist Graham Allison (book: "Destined for War: Can America and China Escape Thucydides's Trap?", 2017), draws on Thucydides' observation that "it was the rise of Athens and the fear that this caused in Sparta that made war inevitable." Allison's research found that in 12 of 16 historical power-transition cases over the past 500 years, the rivalry between a rising power and a ruling power ended in war. Applied to the 21st century, the Thucydides Trap frames the US-China relationship as structurally prone to conflict as China's comprehensive national power approaches and potentially surpasses that of the United States.
- Popularised by Graham Allison (Harvard Kennedy School); the concept is drawn from Thucydides' "History of the Peloponnesian War."
- Allison's dataset: 16 cases of power transition since 1500 CE; 12 ended in war.
- The theory is contested — critics argue the causal mechanism is poorly specified and ignores cases of peaceful transition (e.g., UK-US in early 20th century).
- Related concept: Power Transition Theory (A.F.K. Organski, 1958) — argues war is most likely when the challenger reaches 80% of the dominant power's capabilities and is dissatisfied with the status quo.
- China's counter-narrative explicitly rejects the Thucydides Trap as applicable — arguing that China's rise is peaceful and does not replicate Western imperial patterns.
● Tracked since May 15, 2026 · last seen May 19, 2026 · updates as the daily brief publishes