Just do for Darfur exactly what was done for Bosnia. Bosnia may not have a truly stable peace, but it is miles better off than it was 1992-95.
Again, you want the US to bomb Khartoum and the EU to pick up the pieces?
There are two Chapter 7 resolutions empowering UNMIS already, 1560 and 1709, with authorisation to deploy almost 20 thousand troops. The troops could come from anywhere.
I hasten to add that we're still busy coming up with 15000 troops for UNIFIL to cover Israel's ass in Lebanon. Nothing is 'mere'. — Richard P. Feynman
