Putin updates nuclear doctrine to include support from nuclear powers in attacks on Russia

Russian President Vladimir Putin has signed a revised nuclear doctrine, stating that any conventional attack on Russia supported by a nuclear power will be viewed as a joint attack. This change follows U.S. President Joe Biden's decision to allow Ukraine to strike targets in Russia with longer-range missiles. The updated doctrine expands the conditions under which Russia might use nuclear weapons, including responses to massive aerial attacks. It emphasizes that aggression against Russia by a nonnuclear power, with nuclear support, will be treated as an attack by the entire supporting bloc, likely referencing NATO. This revision marks a significant shift from previous policies, broadening the triggers for potential nuclear use. It reflects ongoing tensions as Russia continues its military operations in Ukraine, with Putin's government seeking to deter Western support for Ukraine.