Defiant is getting closer to embarking on a key long-endurance cruise that could have important ramifications for the U.S.

DARPA's autonomous Unmanned Surface Vessel (USV), the USX-1 Defiant, took a major step toward operational status as a bottle ...

DARPA officially named its first-ever seafaring ship built to carry no humans, it will be known from now on as the USX-1 ...

Following its christening, the USX-1 Defiant soon will begin an at-sea demonstration of its reliability and endurance. The ...

Following a meeting between Russian President Vladimir Putin and United States President Donald Trump, the Ukrainian ...

Zelensky rolled out a list of demands after he spoke with Trump following the bilateral summit with Russian Federation ...

The ship, named the USX-1 Defiant, is the prototype resulting from about five years of work by the Defense Advanced Research ...

DARPA christened the USX-1 Defiant, a 180-foot fully autonomous medium unmanned surface vessel built for the U.S. Navy.