President Vladimir Putin warned Thursday of a "real" risk of nuclear war if the West escalates the conflict in Ukraine, offering a defiant and emboldened stance in his annual speech to Russians. Speaking in Moscow, Putin said his soldiers were advancing in Ukraine and warned the West of "tragic consequences" for any country that dared to send troops to Kyiv. "They have announced the possibility of sending Western military contingents to Ukraine... The consequences for possible interventionists will be much more tragic," he said in his address to the nation. "They should eventually realise that we also have weapons that...