Nine.com.au. The first US nuclear attack submarine to be stationed at Perth’s HMAS Stirling naval base has been named. US submarine designated for Western Australia's AUKUS rotational force, marking a milestone in strengthening regional deterrence. US Submarine USS Colorado to Join AUKUS Rotation in Australia by 2027 - The United States has named USS Colorado, a Virginia-class fast-attack submarine, as its first vessel for a planned.