A UN resolution would be a way to enhance the mandate of the mission. The problem is that, of late, the US is not friendly to UN peacekeepers and instead seeks to get UN mandates for NATO missions.

What is South Africa's policy on Darfur, and what is its position on the AU, NATO involvement, and a possible UN resolution?

A society committed to the notion that government is always bad will have bad government. And it doesn't have to be that way. — Paul Krugman