To decomission a weapon is to weaken the army. Rulers must be very careful about taking power from the army, as army officials are wary of being stripped of power. A ruler must be in the good grace of the army.
For that reason, it is difficult to get rid of inherited weapons. A plausible justification is required.
With Putin, however, Russia is strenghtening an army. It is correct in this case, I think, to verbally remind your enemies of the threat they represent. E.g.Trump, in the US, has a strong discourse position to pull the US from conflict, because his supporters want "To make America great again", the world be damned.
For that reason, it is difficult to get rid of inherited weapons. A plausible justification is required.
With Putin, however, Russia is strenghtening an army. It is correct in this case, I think, to verbally remind your enemies of the threat they represent. E.g.Trump, in the US, has a strong discourse position to pull the US from conflict, because his supporters want "To make America great again", the world be damned.