The threat from North Korea has not diminished, but the United States’s commitment to South Korea has, says the Heritage Foundation, as reports indicate some U.S. forces may be withdrawn if South Korea doesn’t dramatically increase basing payments.

“The way you get them to pay more is you threaten to remove some of the troops,” Heritage Foundation Korea expert Bruce Klingner told the Washington Examiner, describing President Trump’s transactional approach to alliances and troop basing.