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. She ...

Ukraine said it hit 41 of Russia's expensive, hard-to-replace warplanes on June 1 in a meticulously timed operation across three different time zones using drones smuggled over the border.

Discover why Russia colonized Alaska in the 18th century. Explore the economic, strategic, and geopolitical motivations behind Russia’s expansion into North America and the lasting impact on the ...

Russia, by contrast, has spent the past 17 months attempting to grind forward in Ukraine with brute force — and according to new data, it has little to show for its efforts.

Russia and Ukraine traded aerial attacks overnight, resulting in two deaths in each country and many people wounded on both sides, according to officials.

An emboldened Russia has ramped up military offensives on two fronts in Ukraine, scattering Kyiv’s precious reserve troops and threatening to expand the fighting to a new Ukrainian region as ...

Trump said he sensed great hatred between Putin and Ukraine’s President Volodymyr Zelenskyy, making peace talks more complicated. “There’s a lot of bad blood,” Trump said. “There is a ...