A military conflict between the United States and North Korea is “absolutely” possible, U.S. President Donald Trump said during an interview with Reuters published Thursday night EDT.

Speaking two days ahead of his 100th day in office, Trump said that he hopes Kim Jong Un is a rational leader and added that Washington would like to resolve the current conflict “diplomatically.”

“There is a chance that we could end up having a major, major conflict with North Korea. Absolutely,” Trump said. “We’d love to solve things diplomatically, but it’s very difficult.”

The interview, held at the Oval Office, was published a