Daniel Martindale, a U.S. citizen who helped the Kremlin target Ukrainian troops and was then spirited out of eastern Ukraine ...

U.S. President Donald Trump has privately encouraged Ukraine to step up strikes deep in Russian territory, even asking ...

An American who spied on Ukrainian troops to help Moscow's military offensive in the country has been granted Russian citizenship, Moscow-installed authorities said Tuesday. Daniel Martindale spent ...

Two Russian agents were killed by Ukrainian security forces Sunday following reports that the Russian operatives assassinated ...

A coalition of Ukrainian hackers breached and wiped systems belonging to Gaskar Group, a Moscow-based drone maker.

Trump asked Volodymyr Zelenskyy whether Ukraine could strike Moscow, an inquiry that the White House says was merely a ...

On Monday, Trump said that Russia's failure to reach a negotiated settlement with Ukraine within 50 days would lead to his ...

Russia targeted Ukraine with more than 1,800 drones, 1,200 guided aerial bombs and 83 missiles of various types, President ...

Ukrainian Security Service says two Russian FSB agents suspected of killing Colonel Ivan Voronych on July 10 have been ...

Trump's moves underline his growing disenchantment with Russian President Vladimir Putin over the lack of progress in ...

Ukraine’s Security Service said Sunday they had killed Russian special service agents suspected of gunning down a fellow ...

Ukraine's security agency says it has killed Russian agents suspected of assassinating a senior officer in Kyiv.