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United States’ defence of Australia

Stable from 2025

In 2026, 63% say the United States would come to Australia’s defence if Australia were attacked.

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?

Yes, would come to the defence of Australia 63No, would not come to the defence of Australia 35Don’t know 3
  • Yes, would come to the defence of Australia
  • No, would not come to the defence of Australia
  • Don’t know
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’.