If confirmed Ukraine was responsible, the assassination of another Russian general in Moscow points to a sustained campaign aimed at Russia’s rear.

The former counterintelligence officer, who was serving a life sentence without the possibility of parole, died Jan. 5. He ...

In a dramatic turn of events, Ukrainian military intelligence revealed that they staged the death of a high-ranking Russian ...

Sweden has opened up a probe into a Russian Orthodox church in the town of Västerås over possible links to the Kremlin’s hybrid warfare techniques. An investigation by outlet France24 revealed that ...

Dozens of Russian spies who targeted Sergei Skripal’s daughter and mounted a series of attacks on Britain have been exposed by the UK’s security services. Two of the agents were accused of hacking ...

Russia has sharply increased sabotage operations in Europe, targeting critical infrastructure since 2023, according to a report by the International Institute for Strategic Studies. European ...

U.S. and European military officials are increasingly concerned about the flights, even as Russian acts of sabotage have declined. By Julian E. Barnes and Eric Schmitt Reporting from Washington Russia ...

LONDON (AP) — The U.K. on Friday sanctioned Russian military intelligence units and officers it said were behind preparations for a 2022 bomb attack on a theater in southern Ukraine that killed ...

While lauded for its operational prowess, the S.B.U. has also cracked down on the opposition at home. General Maliuk has been ...

On the afternoon of May 11, 2024, two men arrived at a modest hotel in Paris. One of them, identifying himself as Mircho Angelov, presented a Bulgarian ID card at the reception desk, though the ...

President Volodymyr Zelensky said Ukraine needs to focus on security issues, developing its defense and security forces, and ...