President Donald Trump said he is not focused on Iran’s stockpile of highly enriched uranium, even as experts warned that securing those materials was essential to preventing Tehran from advancing toward a nuclear weapon.

“I don’t I even think about it. I just know that it’s so deeply buried it’s going to be very hard for anybody” to reach it, Trump told CBS News in a phone interview, referring to U.S. strikes carried out last year on Iranian nuclear sites believed to house the stockpiles.

“It’s down there deep… Even without a war, they haven’t been able to do it. So… it’s pretty safe. But we’ll make a determination,” he added.

Trump also indicated that he had not yet decided to withdraw American military resources from the region that could be used to help reopen the Strait of Hormuz, a vital oil corridor that Iran had disrupted, while again expressing frustration with NATO allies for not joining the effort.

“At some point I will [pull US forces], not quite yet. But countries have to come in and take care of it. Iran has been decimated,” Trump said.

Officials from NATO countries pushed back, arguing that the United States initiated the conflict with Iran without consulting them, and was now seeking their support to address consequences they did not create.

When asked about a timeline for the conflict’s conclusion, Trump declined to give a firm answer. “It won’t be long,” he said.

“I would say we are two weeks ahead of schedule,” Trump claimed, despite earlier statements from the White House projecting a four-to-six-week conflict and the war already entering its fifth week.

Trump further asserted that Iran would need a decade to recover from the damage sustained during the war.