Former U.S ambassador to Iraq L. Paul Bremer said Tuesday at MSU he believes the United States sent enough troops to Iraq - despite his comment just one day earlier that there weren't adequate forces to control the country.

Bremer spoke for roughly 45 minutes at the Wharton Center about terrorism, the state of Iraq and its future, all while battling constant interruptions by protesters.

He also answered questions that were written down on cards read by MSU President M. Peter McPherson, including the quantity of U.S. troops in Iraq.

"We certainly had enough going into Iraq - we won the war in three weeks," Bremer said.

Bremer also talked about the threat he believed terrorists in Iraq, including al-Qaida, posed to the rest of the world, saying they hijacked Islam and modified it to their views.

"They are driven by a warped vision of Islam, the vision that we must all be Muslim or be killed," Bremer said.

Although the war ended in a short period of time, Bremer said he did not know why U.S. military officials hadn't found weapons of mass destruction in Iraq.

"Obviously, we had an intelligence failure of some kind, there's no question about that," he said.

Because of the way former dictator Saddam Hussein treated his people, however, Bremer said he still believed going to war was the right thing to do and America would continue to fight terrorism.

"Liberating Iraq was part of eradicating terrorism," he said, adding that he supports President Bush for re-election.

He also said American troops gave Iraq a stable currency and new jobs and the Iraqi people were happy to be liberated, even though some were frustrated.

"They had told me it's not fun to be occupied, and I said, 'Well, it's not fun to be the occupiers either,'" Bremer said.

In the future, Iraq could return to governing itself, Bremer said, but he did not give a timeline.

"When the Iraqi government is comfortable taking care of themselves and they ask us to leave, we'll leave," Bremer said.

Bremer's speech was interrupted several times by protesters who broke into small groups in different parts of the Wharton Center Great Hall. Once the presentation began, they shouted questions and "War criminal."

Two people were arrested, an on-scene MSU police officer said.

MSU alumna Sarah McDonald said she and other protesters spoke during the presentation because they wouldn't have been heard otherwise.

"I've been in a lot of protests with signs, and people don't even think about it anymore," she said. "They wouldn't have answered our questions if we waited until the end."

McPherson admonished the protesters and asked them to be quiet while Bremer was speaking and wait to ask questions until the end.

Bremer also asked the speakers to wait until he was done.

"If people behaved like this in Iraq under Saddam Hussein, they would be dead," Bremer said during the speech.

University officials could not be reached for comment Tuesday.

The Associated Press and staff writer Shannon Houghton contributed to this report.