"There's one thing I'm not going to do, I'm not going to pull our troops off the battlefield before the mission is complete," he said in a speech setting the stage for high-stakes meetings with the Iraqi prime minister later this week. "We can accept nothing less than victory for our children and our grandchildren."

A bipartisan panel on Iraq is finalizing recommendations on Iraq. The group led by former Secretary of State James Baker III and former Rep. Lee Hamilton, D-Ind., is expected to present recommendations to Bush next month.

The New York Times reported Monday that the commissioners are expected to debate the feasibility of withdrawal timetables.

Recent U.S. elections added fuel to the argument from Democrats that U.S. soldiers need to come home. But Bush has resisted that, even while projecting the need for a different approach.

"We'll continue to be flexible and we'll make the changes necessary to succeed," the president said.