@ossobuco,
This will halt the assault on Benghazi in the short term, but what happens next is very unclear.
Gaddafi is probably going to switch gears here, and make any subsequent resolutions that could actually call for regime change (remember, this resolution only gives the mandate to protect civilians) difficult. After all, the legal basis for this resolution is the
R2P norm but there is no legal basis for toppling a tyrant outside of this (R2P is relatively new as a legal concept itself). So if Gaddafi simply stops the military assault on the rebels there is still an underlying stalemate that is not resolved and that this resolution doesn't have the mandate to change. He can't crush the rebels but the rebels can't topple him militarily without help.
The next steps here are going to be interesting. This revolution can't be put back in the bottle, but it's very unclear what will break this standoff. This resolution doesn't do it, it
preserves the standoff (as the rebels were about to be overrun). If Gaddafi does continue to attack, he could even be directly attacked and I think he knows this I personally think he's going to throw a curveball now and try to make the next steps very difficult to get consensus on.
The key questions I have for the next 24 hours are:
1) Which Arab countries are going to do exactly what. This was held up partly to secure this and apparently it has been, but nobody has told us which countries have committed to do what. For the sake of appearance having them start it would be nice, and I'm wondering if they will (I think US involvement will be as late and little as possible).
2) Will they start attacking to enforce a no-drive/no-fly zone or will they wait for troop movements to react to?