The below is attributable to Spokesperson Heather Nauert:?
On August 24, Secretary Michael R. Pompeo spoke with Japanese Foreign Minister Kono to discuss next steps on DPRK engagement. Secretary Pompeo and Foreign Minister Kono reaffirmed our commitment to the final, fully verified denuclearization of the DPRK. The Secretary and Minister agreed that pressure must continue until the DPRK denuclearizes. Secretary Pompeo and Foreign Minister Kono affirmed the strength of the U.S.-Japan Alliance and vowed to continue working closely together to address common challenges, seize shared opportunities, and advance the interests of both the United States and Japan in the Indo Pacific region.
Source: U.S. Department of State