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.

A Ukrainian intelligence source said the Olenegorsky Gornyak, which was manned by about 100 ... to attack the Novorossiysk naval base with two unmanned sea boats,” the Ministry said in a brief ...

Across the world, there are only a handful of manned submersibles that can reach ... It is one of at least three deep sea submersibles the country has in operation. Xinhua News Agency via Getty ...

Manufacturers of the deep-sea vessels say many of their clients ... and this relaunched an era of manned submersibles for science and tourism. Around 2005, SEAmagine got its first yacht commission ...

Ukrainian sea drones attacked a major naval base in Russia on Friday, leaving a damaged Russian warship listing in the Black Sea in a brazen strike carried out hundreds of miles from Ukrainian ...

DuBois/Navy) The Navy’s surface community welcomed its newest surface drone squadron to the fleet last week during a ceremony at Naval Base San Diego ... craft,” the sea service said.

which hosts a naval base of the Russian Black Sea Fleet, according to local reports. More YURIY LASHOV/AFP/Getty Images Satellite images from last October showed that Russia's fleet was fleeing ...

Water began flowing from a pipe onto hundreds of acres of dry, sunbaked lake bed as California officials filled a complex of shallow ponds near the south shore of the Salton Sea in an effort to ...