"I have no qualms about troops on the ground — like every president says, 'There will be no ground troops.' I don't say that," Trump told The Post. "I say 'probably they won't be needed' or 'if they are needed.'"

On Sunday, Trump told the Daily Mail he estimated the war would last around "four weeks," but on Monday hinted to The Post that the timeline could be shorter.

"Things will move pretty fast," he said. "We are right on schedule, even ahead of schedule in terms of leadership — 49 killed — and we thought it would take at least four weeks, and we did it in one day."

Trump also said he was not concerned about Iran using terrorism in response to US strikes.

"We'll handle it, like we handle everything else, we'll handle it," he said.

The president noted that he made the final decision to strike "after final negotiations" on Thursday in Geneva — partly based on intelligence indicating that Iran had secretly resumed work on nuclear projects.

Trump insists he believes his actions were "right" and that most Americans support him — despite early polls showing the opposite — arguing that allowing "crazy people" to obtain nuclear weapons would be worse even than a regional conflict.

A Reuters/Ipsos poll conducted Saturday and Sunday showed that only 27% of Americans approved of the strikes, while 43% were opposed and 29% were undecided.

"I think the polls are very good, but I don't care about polls. I have to do the right thing. This should have been done a long time ago," Trump said. "I don't think the support level is low. But it's not about polls. You can't let Iran, a country run by crazy people, have nuclear weapons."