AUKUS 3 members
AUKUS has 3 members; together, today’s AUKUS members had 5.4% of the world’s people and 31% of its GDP in 2025.
Source: Membership: the groupings’ own member listsMembers as of 10 Nov 2026
Source: World Bank Indicators2025
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Summary
A security partnership of Australia, the United Kingdom and the United States, announced in 2021.
Today’s AUKUS members account for 5.4% of the world’s people (2025), 31% of the world’s GDP (2025), 38% of the world’s military spending (2025) and 15% of the world’s CO2 emissions (2024). Together they mine 32% of the world’s lithium, 21% of the world’s rare earths and 3.2% of the world’s palladium (USGS, 2025, estimated). Of its members, 3 are also in the G20, 3 in the OECD, 2 in the G7 and 2 in NATO.
Membership is as each grouping lists it. A grouping’s share of the world adds up its members’ figures, against the sum for every country with a figure.
Source: Membership: the groupings’ own member lists; World Bank; Global Carbon Budget; FAOSTAT; USGSMembers as of 10 Nov 2026
Members
| United States | 342 m | 78% | $30.77 tn | G7, G20, NATO, OECD, APEC, UN Security Council (permanent), Quad, USMCA |
|---|---|---|---|---|
| United Kingdom | 69 m | 16% | $4.00 tn | G7, G20, NATO, OECD, UN Security Council (permanent) |
| Australia | 28 m | 6.3% | $1.80 tn | G20, OECD, APEC, RCEP, Quad |
Source: Membership: the groupings’ own member lists; World BankMembers as of 10 Nov 20262025