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U.S. will share nuclear submarine technology with Australia as part of new alliance, a direct challenge to China

September 16, 2021 at 5:24 a.m. EDT
President Biden, joined by Australian Prime Minister Scott Morrison and British Prime Minister Boris Johnson, announced on Sept. 15 a new Indo-Pacific alliance. (Video: The Washington Post)

President Biden announced Wednesday the United States and Britain will share highly sensitive nuclear submarine technology with Australia, a major departure from past policy and a direct challenge to China in its Pacific neighborhood.

Biden made the announcement alongside British Prime Minister Boris Johnson and Australian Prime Minister Scott Morrison, who joined the president virtually, as they unveiled a new three-way defense alliance, which will be known as AUKUS. Britain is the only other nation to share U.S. nuclear submarine propulsion technology, an agreement dating back decades and aimed largely at countering the old Soviet Union.