They also have an ABM system, unlike the US
Worth reading
https://sonar21.com/forget-m-a-d-russia-can-defeat-the-united-states-in-a-nuclear-war/
For years now Russian social media which is guided by the Kremlin has gloated about Russia’s ability to “win” a nuclear war. Of course, in February they were gloating about defeating Ukraine in a matter of days.