(AP) President Bush, opening a new push to defend his embattled war policy, said Tuesday a U.S. military pullout from Iraq would be a terrible mistake. His Pentagon chief said, "Quitting is not an exit strategy."

Defense Secretary Donald H. Rumsfeld said of the Iraqis, "They know that they're the ones that are going to have to grab that country. And it's time."

The administration is under pressure to convince increasingly skeptical Americans that the president's strategy for Iraq is headed in the right direction nearly three years after the U.S.-led invasion. The president is to give a speech on the subject Wednesday at the Naval Academy and the White House is to release a 35-page document titled "Our National Strategy for Victory in Iraq."

The document is a public version of a classified strategy of military, political and economic efforts that are being implemented by Gen. George Casey, the top U.S. commander in Iraq, and Zalmay Khalizad, the U.S. ambassador to Iraq. The document defines the enemy in Iraq and discusses experiences and lessons learned during the conflict, a senior White House official said.

In his remarks, Bush will talk about setbacks experienced in the training of Iraqi security forces and improvements that have been made, as well as areas now being controlled by Iraqis, the official said, insisting on anonymity because the president's address has not been released.

The official said Bush would not talk about troop withdrawals.

The unrelenting violence that continues to claim American lives has contributed to a drop in Bush's popularity, to its lowest level yet, and to growing doubts about the war. It also has led to a debate in Congress about when the 160,000 U.S. troops there should begin to come home.

The GOP-controlled Senate voted 79-19 this month to urge the president to outline a strategy for "the successful completion of the mission." Rep. John Murtha, D-Pa., attracted attention with his call for a withdrawal within six months.

The administration has responded by counseling patience while also signaling it is planning for a way out. Bush, speaking to reporters from El Paso, Texas, rejected any immediate withdrawal in unusually personal terms.

"I want to defeat the terrorists. And I want our troops to come home," the president said. "But I don't want them to come home without having achieved victory."

His speech Wednesday at Annapolis, Md., was to focus on progress in the effort to train an Iraqi security force and allow the gradual exit of U.S. military forces.

Later speeches over the next two weeks are to emphasize the strides being made in establishing a stable, democratic government and creating a viable economy.

In June, Bush delivered a prime-time address from Fort Bragg, N.C., on the first anniversary of Iraq's sovereignty. Later in the summer, the president tried to blunt the message of anti-war activist Cindy Sheehan, who camped outside his Texas ranch. He returned to the war theme on Veterans Day with a speech accusing congressional Democrats of being "deeply irresponsible" in their criticism of the way he portrayed intelligence about Iraq before the war.

Democratic Sen. Jack Reed, a member of the Armed Services Committee and a former Army Ranger who visited Iraq last month, said the president must give "an honest assessment" pointing out not only the successes in Iraq, but the remaining pitfalls.

"We have to go forward with a plan, not just slogans," he said.

On Tuesday, Rumsfeld gave a preview of the administration's argument that Iraqi security forces are improving. He said about 29 military bases have been turned over to Iraqi control; the Iraqi army has seven division and 31 brigade headquarters in operation, compared with none 16 months ago; the number of Iraqi army battalions "in the fight" is now 95, compared with five 15 months ago, and there are now over 212,000 trained and equipped security forces, compared with 96,000 last year.

Rumsfeld noted changes in several areas once known for strife. Baghdad's infamously dangerous airport road is seeing a sharp decline in attacks under the control of an Iraqi police battalion. The city's once-violent Haifa Street is largely peaceful under the control of an Iraqi army battalion. And the Shiite areas of Najaf, Karbala and Sadr City, the scene of a number of battles last year, are now largely peaceful, Rumsfeld said.

"The people who've been denigrating the Iraqi security forces are flat wrong," he said. "They're doing a darn good job, and they're doing an increasingly better job every day, every week, every month."

Rumsfeld said leaving Iraq before the country is completely ready to secure itself would only invite more terrorist violence and put Americans at greater risk.

His words echoed the president, who promised the judgment of military commanders, not political considerations, would determine troop levels.

"People don't want me making decisions based on politics," Bush said. "They want me making decisions based on the recommendations of our generals on the ground. And that's exactly who I'll be listening to."

___

Associated Press writer Deb Riechmann contributed to this report.