Putin Lowers Nuclear Threshold Amid Tensions with West

Russian President Vladimir Putin has updated the country's nuclear doctrine, allowing for a broader interpretation of aggression that could justify nuclear retaliation. This change follows President Joe Biden's decision to permit Ukraine to use US-made weapons against targets within Russia. The revised doctrine suggests that any aggression from a non-nuclear state, if supported by a nuclear country, could be considered a joint attack on Russia, potentially lowering the threshold for nuclear weapon use.