US official talks AUKUS expansion ahead of summit with Japan

FILE - U.S. President Joe Biden, Australian Prime Minister Anthony Albanese and British Prime Minister Rishi Sunak deliver remarks on the Australia-United Kingdom-U.S. partnership after meeting at Naval Base Point Loma in San Diego, California, March 13, 2023.

U.S. Deputy Secretary of State Kurt Campbell has suggested that the U.S.-U.K.-Australia trilateral security partnership known as AUKUS may soon be expanded to include other Indo-Pacific nations.