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United States’ defence of Australia

New in 2025

In 2025, 63% said the United States would come to the Australia’s defence if Australia were attacked by the military of another country.

Question United States’ defence of Australia

Do you think the United States would or would not come to Australia’s defence if Australia were attacked by the military of another country?

Responses from 2025.

  1. 0%
  2. 25%
  3. 50%
  4. 75%
Yes, would come to the defence of Australia
63
No, would not come to the defence of Australia
33
Total
All groups

2026 observation

A clear majority of Australians (63%) say the United States would come to Australia’s defence in the event of an armed attack. But this represents a significant drop from previous years. In 2019, 2021, and 2022, close to three-quarters of Australians agreed with the statement ‘the United States would come to Australia’s defence if Australia were under threat’.