Thucydides Trap

Thucydides Trap, also referred to as Thucydides's Trap, is a term popularized by American political scientist Graham T. Allison to describe an apparent tendency towards war when an emerging power threatens to displace an existing great power as a regional or international hegemon. It was coined and is primarily used to describe a potential conflict between the United States and the People's Republic of China. The term is based on a quotation of ancient Athenian historian and military general Thucydides, in which he posited that the Peloponnesian War between Athens and Sparta had been inevitable because of Spartan fears of the growth of Athenian power.link, link. 

Context: We were aware of Russia, but we tended to regard it as the little yapping dog to China’s larger and more patient beast. I can mumble the arguments in my sleep: Russia’s economy is the size of Italy’s; it has one tenth the population of China; its aggression is really just desperation by Putin; haven’t you heard of the Thucydides Trap? (I still wish I hadn’t.) 

Source: The Spectator, May 2022, page 15