Very interesting article r/e Russia and nuclear weapons:
https://warontherocks.com/2022/03/un...cision-making/
Worth reading in light of Peskov's statement to CNN not ruling out their use.
EDIT: A lot of detail here about tactical weapons, who's responsible for them and where they are stored. Page 14 onwards:
https://unidir.org/publication/lock-...weapons-europe