President Vladimir Putin signed a revised nuclear doctrine on Tuesday that lowers the threshold for the use of nuclear weapons [1].
This policy shift signals a heightened readiness to employ nuclear arms as a deterrent or retaliatory tool amid escalating tensions with Western powers. The move comes as the conflict in Ukraine reaches a critical juncture, marking 1,000 days since Russia invaded the country [1].
Under the updated guidelines, Moscow may deploy nuclear weapons if the Russian state faces an existential threat [1]. The doctrine also specifies that such weapons may be used if an adversary launches nuclear or other weapons of mass destruction against Russia or its allies [1].
Russian officials previously indicated that changes to the doctrine were forthcoming to address the evolving security environment [2]. Deputy Foreign Minister Sergei Ryabkov said the changes were a response to Western escalation in the war in Ukraine [3].
Russia currently possesses the world's largest nuclear arsenal [4]. The Kremlin has framed these updates as a necessary reaction to the perceived threat of long-range missiles, and other advanced weaponry provided to Ukraine by Western nations [1, 3].
While some reports suggested the changes were planned, the signing of the document on Tuesday indicates the new policy is now in effect [1]. The revised framework allows for a more flexible response to non-nuclear threats that the Kremlin deems catastrophic to the state's survival [1].
“Moscow may use nuclear weapons if the Russian state faces an existential threat”
By lowering the threshold for nuclear deployment, Russia is attempting to create a broader deterrent against Western military support for Ukraine. This shift transforms the nuclear doctrine from a strictly retaliatory posture into a tool of strategic coercion, signaling that conventional attacks—if deemed existential—could now trigger a nuclear response.
