Leaders of the NATO allies are set to hold a summit in London later this year. And U.S. President Donald Trump is expected to attend.
NATO Secretary-General Jens Stoltenberg announced the December meeting in a press release Wednesday.
He said the meeting will be an opportunity for world leaders to "address the security challenges we face now and in the future."
Stoltenberg didn't specifically name President Trump in his announcement. But NATO headquarters told CNN it's "highly likely" the president will attend.
President Trump's relationship with NATO has been strained since his last meeting with the organization.
During an annual summit in Brussels last summer, the president criticized other allies, accusing them of not spending enough on defense and called on them to boost their contributions.
As of Wednesday morning, the White House had not confirmed if Trump would attend the summit.
Additional reporting from Newsy affiliate CNN.