I know one poster in this thread is a qualified lawyer. Anonymity is a double-edged and ironic sword.
Ukraine gave up its nukes it inherited from the Soviet Union in a treaty that specified NATO and Russia would respect its sovereign borders. Without the nukes they have very little military power. Much as I'm all for *world nuclear disarmament* in hindsight Ukraine was dumb to do so when the USA and Russia aren't disarmed to a similar point.
I mentioned to an arms-dealer, sorry private defense contractor, that I thought the world would be more stable if Libya had nukes, not less. He told me Libya was a radically different situation to Ukraine, and it would definitely be destabilizing and dangerous to the Middle East. He's probably right, but I just can't help feeling mutually-assured-destruction-and-take-the-whole-world-down-with-us should be an equal opportunity game.