U.S. President George W. Bush insisted on Tuesday said there will be no early withdrawal of U.S. forces out of Iraq and U.S. troops will stay there as long as needed.

Bush, during a campaign in Florida, said if the United States withdraws early from Iraq, after 20 years, U.S. allies such as Israel might be surrounded by "incredibly hostile forces, in which Iran had a nuclear weapon, in which governments were in control of these radicals who then cut off oil supplies to the West."

"That's the scenario that will happen if we withdraw before we achieve our objectives," Bush said.

"I see the threat. That is why we have got a strategy for victory in Iraq," said Bush.

However, in the face of mounting pressure from both Democrats and Republicans, Bush is no longer using the phrase "stay the course" when speaking about the Iraq war, in a new effort to emphasize flexibility in the face of some of the bloodiest violence there since the 2003 invasion, the Washington Post said in a report on Tuesday.

Democrats have increasingly pressed a case this fall contending that Republicans are stubbornly proposing to "stay the course" in a failing effort to stanch violence in Iraq.

In the last few weeks, a number of Republican lawmakers and party elders have also come forward to express doubts about whether the administration's approach to stabilize Iraq is succeeding and to suggest new strategies, the report said.

The Bush administration has said it is willing to change tactics in Iraq to achieve victory.