Bush's coalition of the willing was no Potemkin coalition.
Greg outlines four points on why Libya is Obama's Iraq. I must disagree. All four points open up a raft of counter responses, some of which go to the current president's benefit. The strongest is likely the third - "preceded by over-confident predictions" - but then, this could be said about the majority of American conflicts, and there is a matter of degrees (which Greg concedes).
But the fourth claim - "surrounded by Potemkin coalitions" - seems the greatest conflation of ravens and writing desks. Colin Powell's much-maligned coalition of the willing was at least a genuine coalition: eventually numbering thirty-four nations, five of which provided troops to the tune of roughly 48,000. Of course, the Bush administration's decision to dawdle and dither in the post-war years, including a epic levels of mismanagement by the State Department and the CPA, resulted in vast increases in the cost of Iraq's prosecution which the U.S. bore almost entirely alone and which peeled off allies over several years. But this does not make the initial coalition less real.
If a major problem with the Bush coalition was that its goal was far too limited to one aspect (not speaking in any serious way to the post-Saddam reality), the Libya coalition's major problem is that it cannot even decide on what their goal is, publicly at least. Even the simple question of coalition policy toward Gaddafi is a difficult one for Obama to answer. And senior rebel military leaders do not believe his ouster is even possible. (The question remains: is the real foe here Gaddafi or Marine Le Pen - the Lunatic of Libya or La Peste Blonde?)
Seen within the context of NATO's long slouch toward irrelevance, the criticism that coalition-based activity is really the U.S., the UK and a series of press releases is increasingly valid. The point is that the Bush coalition's goal in Iraq was limited to the toppling of Saddam Hussein, a goal it realized (even more rapidly than expected, which was part of the problem) before fissures emerged. Obama's coalition, on the other hand, was cracking apart before it accomplished anything of significance in Libya, and indeed before they could even decide on the coherent purpose of the coalition other than following France's lead.