In recent months, Vladimir Putin and his proxies have been foreshadowing a change in Russias nuclear doctrine. This is the set of rules that spells out when and how his country might resort to the use of its

MOSCOW, Sept 25 (Reuters) - President Vladimir Putin said on Wednesday that Russia could use nuclear weapons if it was attacked by any state and that any conventional attack on Russia that was supported by a nuclear power would be considered to be a joint attack.