Va, not sure about starting off with them - but Russia certainly does not have a "no first use" policy, and does state it is willing to use them first.
https://rusemb.org.uk/press/2029
"27. The Russian Federation shall reserve the right to use nuclear weapons in response to the use of nuclear and other types of weapons of mass destruction against it and/or its allies, as well as in the event of aggression against the Russian Federation with the use of conventional weapons when the very existence of the state is in jeopardy. The decision to use nuclear weapons shall be taken by the President of the Russian Federation."