The president’s family says his stock purchases are automatically timed, but recent acquisitions of the computer company’s shares raise questions.

Defense Secretary Pete Hegseth is taking on a problem that the Pentagon and Congress have tried, and mostly failed, to address for years.

After President Trump hinted that weapons sales to Taiwan could figure in negotiations with China, officials emphasized their island’s strategic importance.

The United States and its partners have burned through an enormous amount of air defense missiles in the Iran war, and production is slow.

The governments have no official diplomatic or military ties. But a loose network led by company executives and volunteers is bridging some of that gulf.

The Trump administration, which took a noninterventionist approach to artificial intelligence, is now discussing imposing oversight on A.I. models before they are made publicly available.

The agreements with the technology companies come amid the Defense Department’s dispute with Anthropic.

While the defense industry has announced plans to make more munitions, much of that expanded production will not quickly kick in.

Mythos has triggered emergency responses from central banks and intelligence agencies globally, as Anthropic decides who has access to the powerful model.

Friday’s meeting at the White House followed the introduction of Anthropic’s powerful new artificial intelligence model, Mythos, which U.S. officials believe could be critical for security.

The ruling was a setback for the artificial intelligence start-up in its battle with the Defense Department over the use of A.I. in warfare.

Barely out of prototype testing, the Precision Strike Missile is shrouded in secrecy — including which Persian Gulf countries the Army is launching them from.

In a legal filing, the government said it questioned whether the A.I. start-up could be a “trusted partner” in wartime, which led it to label the company a supply chain risk.

The artificial intelligence company filed two lawsuits against the Department of Defense, saying it was being punished on ideological grounds.

Negotiations, threats and amended contracts have left plenty of questions. Here are some answers.

A fight over Pentagon contracts shows how the leaders of Silicon Valley’s two most important A.I. start-ups are feuding over the future of the tech industry.

Anthropic has said it will sue the Defense Department over the designation, which could prevent the start-up from doing business with the U.S. government.

What to know about Iran’s cheap, noisy Shahed drones and the expensive defense systems trying to stop them.

The new pact includes additional protections to prevent the use of the company’s technology for mass surveillance of Americans.

The Pentagon and Anthropic were close to agreeing on the use of artificial intelligence. But strong personalities, mutual dislike and a rival company unraveled a deal.

The deal came hours after President Trump had ordered federal agencies to stop using artificial intelligence technology made by Anthropic, an OpenAI rival.

Actions by the president and the Pentagon appeared to drive a wedge between Washington and the tech industry, whose leaders and workers spoke out for the start-up.

The Pentagon’s contract dispute with Anthropic is part of a wider clash about the use of artificial intelligence for national security and who decides on any safeguards.

The A.I. firm had rejected military officials’ latest offer. Anthropic has until 5:01 p.m. on Friday to give them unrestricted access to its model.

Anthropic insists on limits on how its technology is used and could be labeled a supply chain risk if it fails to accept the military’s demands.

Canada plans to unveil a new strategy that will shift its current reliance on American companies to Canadian military suppliers.