Baghdad, Iraq ? President Bush flew to Iraq under extraordinary secrecy and security Thursday to spend Thanksgiving with U.S. troops and thank them for “defending the American people from danger.”

The unannounced visit brought wild cheers from battle-worn soldiers and even surprised the president’s parents, who had been expecting him at the Thanksgiving table at his Crawford, Texas, ranch.

Bush, the first U.S. president to visit Iraq, promised that insurgents testing America’s commitment would not be rewarded with a U.S. retreat.

“We did not charge hundreds of miles into the heart of Iraq, pay a bitter cost of casualties, defeat a ruthless dictator and liberate 25 million people only to retreat before a band of thugs and assassins,” Bush told about 600 soldiers from the 1st Armored Division and the 82nd Airborne.

The troops had been told only that they were gathered for Thanksgiving dinner with a VIP guest in the mess hall at Baghdad International Airport.

L. Paul Bremer, the U.S. administrator in Iraq, added his own drama to the surprise. Billed as the special guest along with coalition forces commander Lt. Gen. Ricardo Sanchez, Bremer opened the program by telling the soldiers it was time to read the president’s Thanksgiving proclamation.

He asked if there was “anybody back there more senior than us” to read the president’s words. Bush emerged from behind a curtain as cheering soldiers climbed on chairs and tables to yell their approval.

The president shed a few tears.

“I was just looking for a warm meal somewhere,” he joked, fresh from an 11-hour overseas flight. “Thanks for inviting me to dinner.”

President Bush helped serve Thanksgiving dinner to U.S. troops at Baghdad International Airport. The president's Thursday visit was kept a secret until he emerged to read his Thanksgiving proclamation to the 600 soldiers who had gathered for a holiday meal.

Wearing an exercise jacket with a 1st Armored Division patch, Bush then worked the entire room and dished out — but did not sit down to eat — sweet potatoes and corn from the chow line.

“We thank you for your service, we’re proud of you, and America stands solidly behind you,” he said during brief remarks delivered on a day when Americans count blessings. “You are defending the American people from danger and we are grateful.”

Later, back aboard Air Force One for the flight home to Crawford, the president told reporters that he made his decision while thinking about how hard it must be for soldiers to spend the holiday far from home and family.

“It’s got to be a lonely moment for them,” Bush said. “I thought it was important to send that message that we care for them and we support them strongly, that we erase any doubts in their minds as to whether or not the people stand with them. … Having seen the reaction of those troops, you know it was the right thing to do.”

With U.S. forces in Iraq the target of regular, deadly attacks, Bush has been heavily criticized for his policies, particularly from Democrats seeking to turn the issue into a political vulnerability for him in next year’s presidential election.

More than five dozen U.S. troops were killed by hostile fire in November, more than any other month since the end of major combat in Iraq on May 1. Since operations began, nearly 300 U.S. service members have died of hostile action, including 183 since May 1.

The violence persisted Thursday even as the president was en route to Baghdad.

President Bush greets Sondul Chapouk, leader of the Iraqi Women's Organization, during a surprise visit to the troops at Baghdad International Airport. At right is Council President Jalal Talabani. Bush visited troops Thursday in Iraq.

Insurgents fired a rocket-propelled grenade at the Italian mission in the city, damaging the building but causing no injuries, the U.S. military said. Also, a U.S. military convoy came under attack on the main highway west of Baghdad near the town of Abu Ghraib, witnesses said. And in the northern city of Mosul, unidentified gunmen shot dead an Iraqi police sergeant, said Brig. Gen. Muwaffaq Mohammed.

But Bush, his visit providing striking images of support for him among the troops, told the soldiers their sacrifices were contributing to the safety of their nation.

“You are defeating the terrorists here in Iraq so we don’t have to face them in our own country,” Bush said. “You’re defeating Saddam’s henchmen so that the people of Iraq can live in peace and freedom.”

In turn, soldiers spoke enthusiastically about the president.

“After 13 months in theater, my morale had kind of sputtered,” said Capt. Mark St. Laurent, 36, of Leesburg, Va. “Now I’m good for another two months.”