It would be best to encourage the self defense of the citizens of Darfur, providing arms and millitary advisors in order to protect villages and other regions.
In the past this had led to full intervention. It ends up rather messy with confused mandates and objectives (this is how the americans first got involved in vietnam).
It is a very interesting issue, one which many of the left will not give much consideration.
The sudan government has effectively told the UN not to interfer; any UN force that attempts to enter shall be treated as an invading army. So what is to be done?
An international force would seem to be the obvious "right thing to do". However, this is effectively imperialism.
Captain Blackadder: You see, Baldrick, in order to prevent war two great super-armies developed. Us, the Russians and the French on one side, Germany and Austro-Hungary on the other. The idea being that each army would act as the other's deterrent. That way, there could never be a war.
Private Baldrick: Except, this is sort of a war, isn't it?
Captain Blackadder: That's right. There was one tiny flaw in the plan.
Lieutenant George: O, what was that?
Captain Blackadder: It was bollocks.