Russian President Vladimir Putin proposed a series of changes to Russia’s nuclear doctrine on Sept. 25 during a Security Council meeting on nuclear deterrence, Russia’s state-owned outlet Ria Novosti reported. Throughout the war, the Kremlin has repeatedly laid down red lines, which it has said could provoke a nuclear response if crossed. Deputy Foreign Minister Sergei Ryabkov said on Sep. 1 that Russia will change its nuclear doctrine based on an analysis of recent conflicts and the West’s “escalation course.” Work on drafting the doctrinal changes is at “an advanced stage,” Ryabkov reported …