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.

Russian forces are using explosive-packed drones connected to their operators by fiber-optic cables to deliver unjammable precision strikes on Ukrainian troops and military equipment, and Kyiv is ...

Russia is using fiber-optic drones to gain an advantage in the Ukraine war. These drones are harder to detect and jam than traditional drones. Ukrainian forces are adapting their tactics to ...

La PINE, Ore. (KTVZ) -- A fiber optic line that Bend-La Pine Schools' five schools in southern Deschutes County rely on for phone and internet service has been severely damaged, causing outages ...