Checked other thread saying France alone can MAD Russia, While I think on the otherhand the Dead Hand does not have to be pulled and basically can annex the country without nuking it. It rather comes to how many nuclear missiles France has with their capabilities and what amount of SAM's Russia has and how they improved those capabilities.
France supposedly signed some agreement where they can't have more than 300 nuclear warheads, but it comes down to where those nuclear warheads are in. A large portion can be in cruise missiles like ASMP and Storm shadow. The thing those have to be transferred with aircrafts to Ukraine and that is highly assuming the Russians wouldn't bomb your location in Ukraine. And depending on the aircraft of choice to carry those a good distance has to be travelled through Ukraine than to Russia assuming the aircraft or missile was not shot down. And alerting the Russians that you used sent a nuke to detonate in their airspace or Ukraine might have dire consequences in return depending on their next choice of action.
Even if France has some SRBM, MRBMs or IRBMs laying around the early version of the S-400 was meant to deal with those threats back in 2007, and they got newer radars and made new modifications with their SAM missiles like new warhead tracking sensors and boosting the G-load from 30 to 60 along with increasing range to deal with the possibility that their BMs have maneuvering capabilities like the Topol-M

The Yars replaced the Topol and the Cedar missile replaced the Yars which segways into what is left of Frances SLBM and ICBM arsenal and what capabilities do they have?
Supposedly 57 were planned but orders were cut. I am assuming these SLBMs only follow a simple ballistic trajectory before releasing MIRVs and there is no information that it has abilities like the Topol-M which can maneuver before the midcourse phase, short engine burn time following take off which gives a short reaction to satellite detection of launches during its boost phase and also a more flat ballistic trajectory with a lesser reaction time for ground based radars to track and intercept. The Yars probably has more sophisticated capabilites than the Topol and the Cedar has more sophisticated capabilities than Yars.
The S-500 is stated to intercept 10 ICBMs simultaneously according to earlier claims, intercept HGVs and has recently intercepted a SLBM.
https://www.defensenews.com/land/2023/03/29/russia-to-upgrade-moscows-missile-defenses-by-years-end/
10 battalions of S-500s assuming SLBMs are just ICBMs were ordered in 2021 to complete the 2027 armement program which can give capabilities to intercept 100 ICBM/SLBMs with the assumption that the interception rate is good and that Frances M51s dont misfire. And the program states the A-235 is to be completed by the end of the armament program which has new interceptor missiles that operate farther than the S-500 and has powerful ground radar defense called Voronezh radars and I think they will be fielding the Yakhroma radar with it
https://tass.ru/armiya-i-opk/10438637 and I think this might be their 1st photonic radar since it will operate in meter 30-300mhz, decimeter 300mhz-3ghz, centimeter 3-30ghz, millimeter 30-300ghz frequencies.
But yeah, this is why they were mad the US exited the ABM treaty and I dont think they would let it fly having Ukraine be a part of NATO with the assumption that the west would reach their level of ABM capabilities to be closer to their borders reducing their nuclear strike capabilities. It paranoid the Russians enough to create Sarmatian, Poseidon, Burevestnik, Zircon, Kinzhal, more new missiles on tracked vehicles to move anywhere in Russia like yars, and a dedicated underground high speed train station carrying nuclear missiles in containers choosing random tracks on AI decisions to complicate western decision making on ever trying to strike Russia. This sounds like excessive schizo behavior of the world is coming to get us
speaking of nukes, France is recently restarting their production.
