Russia's new military doctrine names NATO as key risk

Russia's President Vladimir Putin speaks during a meeting of the State Council and the Presidential Council for Culture and Art, at the Kremlin in Moscow, December 24, 2014. REUTERS/Sergei Ilnitsky/Pool

MOSCOW (Reuters) - Russian President Vladimir Putin has signed a new military doctrine, naming NATO expansion among key external risks, the Kremlin said on Friday, days after Ukraine made fresh steps to join the Atlantic military alliance.

Moscow's previous military doctrine, signed by Putin in 2010, also identified NATO expansion as a top risk to Russia, but the stakes have risen sharply over the past year.