Australia “absolutely” did not promise to support the US in any military conflict over Taiwan in return for a deal to acquire US nuclear-powered attack submarines, Australia’s Defence Minister Richard Marles said on Sunday (Mar 19).

Australia, the US and Britain unveiled the multi-decade AUKUS project on Monday. Canberra is to buy the US Virginia-class military submarines, with Britain and Australia eventually producing and operating a new submarine class, SSN-AUKUS.

Australia’s centre-left Labor government says the A$368 billion (US$246 billion) deal is necessary given China’s military buildup in the region, which it has labelled the largest since World War II.

Asked whether Australia had given the US any commitment to help during a conflict over Taiwan in return for access to the submarines, Marles told ABC television: “Of course not, and nor was one sought.”