I've just read a post on Quora where the author says Putin will not order a nuclear strike anytime soon on Kiev or elsewhere in Ukraine. The two main reasons are apparently 1) because nuclear weapons are not considered effective against modern cities (he doesn't mention the tactical use against military battalions in open ground though) and says that hundreds of missiles would be needed to level Kiev. 2) Russia has very likely not maintained its nuclear arsenal; after just twenty years of non-maintenance a nuclear warhead is useless--maintenance entails replacing the explosive envelope around a radioactive uranium/plutonium core, this explosive device is extremely high precision and very costly to produce, and they typically need replacing every five years. Russia probably has some launch-ready missiles, but given the known levels of corruption and diversion of military funds, enough to show to inspectors from the Kremlin. So if they did launch a nuke, two things will happen. Ukraine will keep fighting and Russia will have invited nuclear annihilation from the West. The author concludes that Putin knows his best option is to maintain a fear of them being used, which he also knows their use would be a suicidal move for Russia and might mean his demise at the hands of his generals if he did give an order to use them against Ukraine. What do you think?