Russian President Vladimir Putin's FSB fears China is "trying to encroach on" Russian territory, a leaked document alleges.

An FSB document reveals that concerns over China's expanding influence go beyond Russia's Far East border regions. During the Soviet era, Central Asian countries were under Moscow's control.

Ex-FSB officer Navruzbekov claimed that desperation over Russia’s chances in Ukraine was driving many of his colleagues to look for an escape. “Now in the FSB it’s every man for himself ...

Look at almost any recent major news story from Russia, and you’ll find the Federal Security Service, better known as the FSB. Having failed to prevent the Crocus City Hall terrorist attack in Moscow ...