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.

Kori Schake’s essay (and the book from which it is adapted) provides a serious, penetrating, and provocative invitation to debate the overriding geostrategic challenge of our time: what to do about the rise of China. Safe Passage is an outstanding example of the sort of work we champion at the Harvard Belfer Center’s Applied History Project. It illuminates current challenges by careful analysis of the historical record. And the case she examines in which the United States rose to rival and eventually surpass the British global hegemony is among the most instructive of the 16 cases in the Harvard Thucydides’ Trap case file for policymakers seeking to cope with the current U.S.-China competition.

"Since the election of Donald Trump as US president, the probability of a Sino-American conflict has soared. Last year Trump ran an aggressively anti-Chinese election campaign, repeatedly threatening to impose tariffs on Chinese imports. Trade is only one of several bones of contention. America remains committed to freedom of navigation in the South China Sea. China’s island-building programme is designed to make that sea Chinese in fact as well as in name. Trump is less committed than any US president since Richard Nixon to the 'One China' policy, which pretends that Taiwan is not an independent state."

Graham Allison (@GrahamTAllison), who is stepping down as the Director of the Belfer Center, a position he’s held for the past 22 years, takes a moment to talk with Aroop Mukharji (@aroopmukharji) about his new book “Destined for War: Can America and China Escape Thucydides’s Trap.” Allison explains the big idea that is Thucydides’s Trap, what might spark war between America and China, and what he has in common with Queen Elizabeth II.

We urge the next president to establish a White House Council of Historical Advisers. Historians made similar recommendations to Presidents Carter and Reagan during their administrations, but nothing ever came of these proposals. Operationally, the Council of Historical Advisers would mirror the Council of Economic Advisers, established after World War II. A chair and two additional members would be appointed by the president to full-time positions, and respond to assignments from him or her. They would be supported by a small professional staff and would be part of the Executive Office of the President.

In his new biography of Henry Kissinger, the historian Niall Ferguson recalls that halfway through what became an eight-year research project, he had an epiphany. Tracing the story of how a young man from Nazi Germany became America’s greatest living statesman, he discovered not only the essence of Kissinger’s statecraft, but the missing gene in modern American diplomacy: an understanding of history.