There is, of course, a ton of predictable back-and-forth between the campaigns today about Barack Obama’s New York Times Op-Ed on Iraq.

To me, it doesn’t read as anything all that new—except that Obama clarifies his timeline for withdrawal from Iraq, saying it would be completed in 2010. And, naturally, there’s wiggle room:

In carrying out this strategy, we would inevitably need to make tactical adjustments.

But if you’re looking to catch up on where Obama is on Iraq, the surge, and a timeline for ending the war, his piece is definitely worth a read. Key section:

The differences on Iraq in this campaign are deep. Unlike Senator John McCain, I opposed the war in Iraq before it began, and would end it as president. I believed it was a grave mistake to allow ourselves to be distracted from the fight against Al Qaeda and the Taliban by invading a country that posed no imminent threat and had nothing to do with the 9/11 attacks. Since then, more than 4,000 Americans have died and we have spent nearly $1 trillion. Our military is overstretched. Nearly every threat we face — from Afghanistan to Al Qaeda to Iran — has grown.

In the 18 months since President Bush announced the surge, our troops have performed heroically in bringing down the level of violence. New tactics have protected the Iraqi population, and the Sunni tribes have rejected Al Qaeda — greatly weakening its effectiveness.

But the same factors that led me to oppose the surge still hold true. The strain on our military has grown, the situation in Afghanistan has deteriorated and we’ve spent nearly $200 billion more in Iraq than we had budgeted. Iraq’s leaders have failed to invest tens of billions of dollars in oil revenues in rebuilding their own country, and they have not reached the political accommodation that was the stated purpose of the surge.

The good news is that Iraq’s leaders want to take responsibility for their country by negotiating a timetable for the removal of American troops. Meanwhile, Lt. Gen. James Dubik, the American officer in charge of training Iraq’s security forces, estimates that the Iraqi Army and police will be ready to assume responsibility for security in 2009.

Only by redeploying our troops can we press the Iraqis to reach comprehensive political accommodation and achieve a successful transition to Iraqis’ taking responsibility for the security and stability of their country. Instead of seizing the moment and encouraging Iraqis to step up, the Bush administration and Senator McCain are refusing to embrace this transition — despite their previous commitments to respect the will of Iraq’s sovereign government. They call any timetable for the removal of American troops “surrender,” even though we would be turning Iraq over to a sovereign Iraqi government.

But this is not a strategy for success — it is a strategy for staying that runs contrary to the will of the Iraqi people, the American people and the security interests of the United States. That is why, on my first day in office, I would give the military a new mission: ending this war.