Asia & Pacific

The two nations met at Singapore's Shangri-La Dialogue, which brings together top defence officials and experts from about 45 countries.

The Virginia-class USS North Dakota (SSN 784) submarine is seen during bravo sea trials in this U.S. Navy handout picture taken in the Atlantic Ocean August 18, 2013. The Navy commissioned its newest attack submarine North Dakota, during a ceremony October 25, 2014, at Submarine Base New London in Groton, Connecticut, defense officials announced. (Reuters/US NAVY)

Australia and the United States announced Saturday the nations will "streamline" the AUKUS agreement regarding its purchase of nuclear-powered submarines, which will no longer include any new vessels.The two nations met at Singapore's Shangri-La Dialogue, which brings together top defence officials and experts from about 45 countries.

Under the 2021 AUKUS deal, Australia is expected to receive at least three of so-called "Virginia-class" nuclear-powered submarines from the United States within 15 years.