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the claim
Australia officially declared war on Germany during World War II on September 3, 1939
the verdict
SUPPORTED
the evidence backs this
refutedsupported
the weight of evidence
6 sources for · 0 against

Historical references and peer-reviewed texts confirm that Australia followed Great Britain in declaring war on Germany on September 3, 1939.

Evidence for · 6
HarperResource: The World War II desk reference
2004 · cited by 0
Notes that Britain and France declared war on September 3 and mentions Australia in that context.
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How claims like this are judged

Judged against reference works: claims of this kind are settled by the historical reference record, not journal abstracts.

More for · 5
Sterling: The Real History Of World War Ii A New Look At The Past
2011 · cited by 0
States explicitly that Commonwealth nations of Australia and New Zealand declared war against Germany on September 3.
Sterling: The Real History of World War II
cited by 0
States explicitly that Commonwealth nations of Australia and New Zealand declared war against Germany on September 3.
OpenAIRE: The Polish-Soviet War of 1939
1991 · cited by 0
States that when Britain and France declared war on September 3, 1939, British Dominions like Australia followed suit.
OpenAIRE: World War II begins
2014 · cited by 0
States that the German attack on Poland triggered declarations of war by Britain, France, Canada, Australia, etc.
OpenAIRE: World War II in the Cinema of Green Continent
2015 · cited by 0
Explicitly states that for Australia, World War II began on September 3rd, 1939.
Everything we examined (20)
  1. Wikipedia: Australiareferenceno side takennot shown: read and judged not to bear on this claim
  2. Wikipedia: Germanyreferenceno side takennot shown: read and judged not to bear on this claim
  3. Book: American Women During World War IIreferenceno side takennot shown: read and judged not to bear on this claim
  4. Distributed by Crown Publishers: World War II : strange and fascinating facts : 4139 entries about the people, the battles, and the eventsreferenceno side takennot shown: read and judged not to bear on this claim
  5. Warner: World War II super factsreferenceno side takennot shown: read and judged not to bear on this claim
  6. Adams Media Corp.: The everything World War II book : people, places, battles, and all the key eventsreferenceno side takennot shown: read and judged not to bear on this claim
  7. HarperResource: The World War II desk referencereferencesupports
  8. Adams Media: The everything World War II book : from the rise of the Third Reich to V-J Day--all the people, places, battles, and key events you need to knowreferenceno side takennot shown: read and judged not to bear on this claim
  9. Sterling: The Real History Of World War Ii A New Look At The Pastreferencesupports
  10. Sterling: The Real History of World War IIreferencesupports
  11. Facts on File: Encyclopedia of World War IIreferenceno side takennot shown: read and judged not to bear on this claim
  12. Wikisource: British War Economy/Chapter IVreferenceno side takennot shown: read and judged not to bear on this claim
  13. Wikisource: Judgement of IMT at Nurembergreferenceno side takennot shown: read and judged not to bear on this claim
  14. Wikisource: What To Do With Germanyreferenceno side takennot shown: read and judged not to bear on this claim
  15. OpenAIRE: The Polish-Soviet War of 1939peer-reviewedsupports
  16. OpenAIRE: World War II beginspeer-reviewedsupports
  17. OpenAIRE: The General Shipping Situationpeer-reviewedno side takennot shown: read and judged not to bear on this claim
  18. OpenAIRE: World War II in the Cinema of Green Continentpeer-reviewedsupports
  19. OpenAIRE: Oppositional Reading and The Grottopeer-reviewedno side takennot shown: read and judged not to bear on this claim
  20. OpenAIRE: The Role of Evidence in War Crimes Trials: the Common Law and the Yugoslav Tribunalpeer-reviewedno side takennot shown: read and judged not to bear on this claim
The paper trail · every fact has a biography
first checked05 Aug 2026
judged → SUPPORTED · 7505 Aug 2026
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