"This treaty will be a statement of our two nations' commitment to work together in meeting the shared strategic security challenges we face and to contribute to a secure and stable Indo-Pacific," Morrison said in a statement. The strengthened security ties expand on efforts by the US, Japan, India and Australia -- dubbed the Quad -- to work on shared concerns about China in the Indo-Pacific region.
Australia and Japan also plan to discuss opportunities to strengthen government and business partnerships on clean energy, critical technologies and materials.