By now the nukes would have been useless. You need to have a continuous ballistic and nuclear program to manufacture new nukes and missiles as the old ones become stale.
I think Ukraine would have no problem maintaining it's own nuclear program from purely technical perspective, considering they have a number of nuclear plants and expertise. Plutonium is a byproduct of a nuclear plant, they wouldn't even have to bother with uranium enrichment.
I think Ukraine would have no problem maintaining it's own nuclear program from purely technical perspective, considering they have a number of nuclear plants and expertise. Plutonium is a byproduct of a nuclear plant, they wouldn't even have to bother with uranium enrichment.