CS Monitor: Carrot or stick: Which nudged Libya?.
The article starts with this hypothesis:
“Libya’s bid to rejoin the world community is sure to rekindle international debate over whether force or diplomacy is more effective in addressing the world’s rogue states and their promotion of terrorism or pursuit of weapons of mass destruction.
The answer may be that the two together garner the best results.”
and then continues to explain how diplomacy has largely had the greatest impact in Libya. It’s a strange article in this respect, but is still a good read overall.