The Trump administration has escalated its rhetoric against North Korea, after the rogue regime threatened to attack the US territory of Guam in the Pacific.
"America stands by its allies, including Australia of course, and we stand by the United States," Mr Turnbull told 3AW.
"So be very, very clear on that. If there's an attack on the US, the ANZUS Treaty would be invoked and Australia would come to the aid of the United States, as America would come to our aid if we were attacked."
