Defence officials from around the world are in Perth this week for a major nuclear-powered submarine event showcasing WA's strategic role in the AUKUS alliance.

The Submarine Institute of Australia's (SIA) biennial conference kicks off at the Pan Pacific Perth today and will also provide some of the sharpest defence minds - from policy experts to maritime researchers - an opportunity to connect.

Distinguished speakers at the conference include the Hon Richard Marles MP, Deputy Prime Minister and Minister for Defence, the Deputy Chief of Navy Matt Buckley and Dame Sarah MacIntosh DCMG, British High Commissioner to Australia.

Western Australia is Australia's home of AUKUS and from 2027 nuclear-powered submarines from the United States and United Kingdom will begin to forward operate from HMAS Stirling at Garden Island as part of Submarine Rotational Force - West (SRF-West).

This will strengthen WA's defence industries experience with nuclear-powered submarines before Australia receives its own sovereign capability in the 2030s.

Conference attendees will also tour the Australian Marine Complex (AMC) where the new Commonwealth Defence Precinct is set to be built. Once completed the precinct will become the largest naval maintenance hub in the southern hemisphere and support generations of jobs for Western Australians.

The SIA conference is the centrepiece of Defence Week - a week-long program of defence-related events hosted in WA from 18 to 22 August.

Read the full media statement here