U.S. Secretary of State Antony Blinken said that Washington will work towards the “denuclearization of North Korea” alongside American allies during a meeting with Japan’s foreign minister on Tuesday.

Blinken’s comment is in line with other remarks Washington made last week, when Japan, Australia, India and the U.S. met in an informal strategic forum on March 12 and reaffirmed their “commitment to the complete denuclearization of North Korea in accordance with United Nations Security Council resolutions” in a joint statement.

Now, some experts say that the United States is making its stance on nuclear negotiations more clear: Previously, North Korea