ERIC LIPTON

The Pentagon is in the early stages of a program to put constellations of smaller and cheaper satellites into orbit to counter space-based threats of...

The decision in Parliament, opposed by environmentalists, will allow prospectors to start surveying the country’s waters.

Retired officers and departing defense officials are flocking to investment firms that are pushing the government to provide more money to defense-technology startups.

Here is a list of people who have jumped from the Pentagon and other government posts into jobs with venture capitalists that are backing defense...

Concern about weapons that can kill without a human decision is not entirely new.

Worried about the risks of robot warfare, some countries want new legal constraints, but the U.S. and other major powers are resistant.

Israel’s conflict with Hamas, Russia’s invasion of Ukraine and the rise of China have brought a boom for weapons makers and a chance for Washington...

A new generation of cheaper and more flexible vessels could be vital in any conflict with China, but the Navy remains lashed to big shipbuilding...

The military will soon change how it purchases the kind of autonomous devices that the Ukrainian military has used against Russia, officials said.

An Air Force program shows how the Pentagon is starting to embrace the potential of a rapidly emerging technology, with far-reaching implications for war-fighting tactics,...