Putin outlines new rules for Russian use of vast nuclear arsenal

Russian President Vladimir Putin has warned that Russia could respond with nuclear weapons if it were attacked with conventional arms in the latest changes to the country’s nuclear doctrine.

In a televised meeting of Russia’s Security Council, Putin on Wednesday announced that under the planned revisions, an attack against the country by a non-nuclear power with the “participation or support of a nuclear power” would be seen as a “joint attack on the Russian Federation”.