The White House’s review of U.S. policy toward North Korea has entered its “final stages,” a senior Biden administration has said, a day ahead of a key meeting between top security officials from the United States, Japan and South Korea.

Nuclear-armed North Korea returned to the spotlight last week in dramatic fashion, launching two short-range ballistic missiles into the Sea of Japan after having been largely overshadowed by growing Sino-American frictions and the COVID-19 pandemic over the past year.

While U.S. officials have remained mum on details of the policy review, President Joe Biden has put a heavy emphasis on the importance of working with allies to help craft the policy.