Ellie Cook is a Newsweek security and defense reporter based in London, U.K. Her work focuses largely on the Russia-Ukraine war, the U.S. military, weapons systems and emerging technology.

Actresses thank spectators at the Chernihiv Regional Youth Theatre, which adapted with an all-female cast as most male actors are at war, in Chernihiv, Ukraine. Trump imposes tariffs on ...

"Should Iran or its proxies threaten American personnel and interests in the region, the United States will take decisive ...

As global superpowers, the United States and China are home to two of the most formidable military forces on the planet, each with its own distinct strategic advantages. The US military, with its ...

The total cost of the US military’s operation against the Iran-backed Houthi militants in Yemen is nearing $1 billion in just under three weeks, even as the attacks have had limited impact on ...

Comparing the military might of the United States and Russia has long been a topic of serious speculation, with each nation possessing some of the largest and most advanced armed forces in the world.

Paul Bierman receives funding from the US National Science Foundation, this work in part supported by grant EAR-2114629. In 1957, Hollywood released “The Deadly Mantis,” a B-grade monster ...

Defense Secretary Pete Hegseth on Wednesday ordered a Pentagon-wide review of the physical fitness, body composition and grooming standards currently in place in the armed forces. Hegseth’s ...

The soldiers, based in Fort Stewart in Georgia, were riding in the vehicle on a scheduled maintenance mission to recover another US Army vehicle in the training area when they disappeared.