Wednesday's speech will set the agenda for withdrawal from Iraq.

President Bush is going to begin withdrawing troops from Iraq. That no longer seems in doubt. The question is: How does he plan to do it? Which troops will come out first? How quickly? Where will they go? Under what circumstances will they be put back in? Which troops will remain, and what will they do? How will they keep a profile low enough to make the Iraqi government seem genuinely autonomous yet high enough to help deter or stave off internal threats? Who will keep the borders secure, a task for which the Iraqi army doesn't even pretend to have the slightest capability? What kinds of diplomatic arrangements will he make with Iraq's neighbors—who have their own conflicting interests in the country's future—to assure an international peace?

More to the point, does the president have a plan for all this? (The point is far from facetious; it's tragically clear, after all, that he didn't have a plan for how to fight the war if it extended beyond the collapse of Saddam.) Has he entertained these questions, much less devised some shrewd answers? If he's serious about a withdrawal or redeployment that's strategically sensible, as opposed to politically opportune, we should hear about them in his speech Wednesday night.