President Trump’s decision to allow Nvidia to sell its chips to China has raised questions about whether he is prioritizing short-term economic gain over long-term American security interests.

© Pete Marovich for The New York Times

President Trump’s decision to allow Nvidia to sell its chips to China has raised questions about whether he is prioritizing short-term economic gain over long-term American security interests.

Innovations in A.I., synthetic biology and quantum computing are set to change war.

Investing in the old ways of war leaves America at risk.

Investing in the old ways of war leaves America at risk.

As President Emmanuel Macron of France visited China, its leader, Xi Jinping, said his country would play a constructive role in ending the fighting.

Arguments about history are proliferating as the postwar order led by the United States crumbles.

The push to close the offices appears to contradict a federal judge’s order from April, which required Trump officials to resume operations at V.O.A.

A diplomatic row with Japan over Taiwan has China turning to Britain and France for support, appealing to their shared history as wartime allies.

The Japanese leader’s candor over Taiwan brought the shared regional stakes out into the open, and the U.S. must stand behind its ally.

The Japanese leader’s candor over Taiwan brought the shared regional stakes out into the open, and the U.S. must stand behind its ally.

China and Japan are in a diplomatic feud over Taiwan, with President Trump in the middle.

China and Japan are in a diplomatic feud over Taiwan, with President Trump in the middle.

In an unusual move, Xi Jinping, the leader of China, called President Trump. The two spoke about trade, Taiwan and Ukraine, according to separate official statements.

With Japan’s new leader refusing to back down from China’s show of force and claims on Taiwan, Xi Jinping picks up the phone to try to pry the U.S.-Japan alliance apart.

China closed off Japanese seafood imports after Japan’s new leader declared strong support for Taiwan. Suddenly, sushi is everywhere on Taiwanese social media.

Facing reprisals from Beijing for a remark over Taiwan, Prime Minister Sanae Takaichi must walk a fine line to prevent escalating the dispute without looking weak at home.

Facing reprisals from Beijing for a remark over Taiwan, Prime Minister Sanae Takaichi must walk a fine line to prevent escalating the dispute without looking weak at home.

The United States, not China, seems determined to upend the global order.

The United States, not China, seems determined to upend the global order.

Trump’s ill-conceived tariff war exposed U.S. vulnerabilities, strengthened China’s leverage and undermined America at a pivotal time.

Decades ago, a Chinese village became an official symbol of revolutionary “self-reliance.” The slogan hasn’t changed, but nearly everything else has.

China sent Coast Guard ships near disputed islands and warned travelers and students about safety risks in Japan. The escalation is over comments on Taiwan by Japan’s new prime minister.

But there are signs that greenhouse gas pollution in China might be slowing, according to a new analysis.

Despair about dimming economic and personal prospects has created an outwardly strong, inwardly brittle nation.

The shake-up in China’s armed forces comes as both Beijing and Washington are pushing through major changes in their country’s militaries, in different ways.

China will require licenses for export of 13 chemicals used to make the deadly drug, another indicator of thawing tensions between the world’s two largest economies

The changes would make it easier for American firms to obtain key minerals, delivering on what the White House said the two countries had agreed to at last month’s summit.

Longevity labs, “immortality islands” and grapeseed pills are part of China’s national project to conquer aging, despite sometimes shaky science and extravagant claims.