The United States, Britain and Australia said on Wednesday they would establish a security partnership for the Indo-Pacific that will involve helping Canberra acquire nuclear-powered submarines, as Chinese influence over the region grows.

Under the partnership, announced by President Joe Biden, British Prime Minister Boris Johnson and Australian Prime Minister Scott Morrison, the United States and Britain will provide Australia with the technology and capability to deploy nuclear-powered submarines.

In a three-way virtual announcement from each of their capitals, the leaders stressed Australia will not be fielding nuclear weapons but using nuclear propulsion systems for the vessels, to guard against future threats.