WASHINGTON -- Defense Secretary Pete Hegseth gave Anthropic's CEO a Friday deadline to open the company's artificial intelligence technology for unrestricted military use or risk losing its government ...

The Pentagon slapped a formal supply-chain risk designation on artificial intelligence lab Anthropic on Thursday, limiting use of a technology that a source said was being used for military operations ...

Pop culture has long linked UFOs to alien spacecraft, but the U.S. military now uses the term Unidentified Anomalous Phenomena, or UAP, to avoid premature conclusions. This Dark Footage report ...

Explore the Pentagon's report on UFO sightings in space, featuring unexplained manoeuvres and expert analysis of unidentified aerial phenomena.

FILE - Defense Secretary Pete Hegseth stands outside the Pentagon during a welcome ceremony for the Japanese defense minister at the Pentagon in Washington, Jan. 15, 2026. (AP Photo/Kevin Wolf, File) ...