On the 11th hour of the 11th day of the 11th month in 1918, the guns of World War I fell silent — and nearly 20 million people lay dead. Could such a conflict happen today? After more than seven decades without a shooting war between great powers, many Americans find the thought of the United States and a major adversary like China killing millions of one another’s citizens virtually inconceivable.

But when we say something is “inconceivable,” we should remember this: the realm of what is possible is not bound by what our limited minds can conceive. Today, the intensifying rivalry between a rising China and a ruling United States could lead to a war that neither side wants and that both know would be even more catastrophic than World War I.

Belfer Center experts offer insight and analysis of the Trump-Kim summit through statements and interviews.

Chinese analysts, from President Xi Jinping on down, have nominally rejected Allison’s pessimistic analysis. “There is no Thucydides Trap,” Xi has argued, claiming that he had devised an alternative “new type of great-power relations” that would avoid war by recognizing that each Asian giant had its own legitimate interests. More recently, he has shifted to arguing that “China and the U.S. must do everything possible to avoid [the] Thucydides Trap.”

Senator Dan Sullivan (R - Alaska) discusses Graham Allison's book Destined for War: Can American and China Escape Thucydides's Trap? during a senate session on May 8, 2017.

For two Presidents who pride themselves as masters of the art of the deal, is there a potential bargain to be struck at Mar-a-Lago that could contain the North Korea crisis and point Beijing and Washington away from war? Potentially. 

Indeed, an essential element in the Chinese art of the deal is guanxi. In many cases, this includes direct payments to another leader that in English law tradition would be called bribes.

What made war “inevitable” was the tectonic structural stress caused when a rising power threatens to displace a ruling one ― a phenomenon I’ve described as “Thucydides’s Trap.”

If Trump and Xi fail to find a way to join in acting decisively to contain this threat, we will all have good reason to fear a rush of events as consequential as those that upended Woodrow Wilson.