You don't understand how the British Empire functioned and the ties that bound it, primarily the ties to its white constituents.
If you mean this then I do understand:
On 1 September 1939, Germany
invaded Poland. Two days later, on 3 September, after a British ultimatum to Germany to cease military operations was ignored, Britain and France declared war on Germany. Britain's declaration of war automatically committed
India, the
Crown colonies, and the
protectorates, but the 1931
Statute of Westminster had granted autonomy to the
Dominions so each decided their course separately.
Australian Prime Minister
Robert Menzies immediately joined the British declaration on 3 September, believing that it applied to all subjects of the Empire and Commonwealth.
New Zealand followed suit simultaneously, at 9.30 pm on 3 September (local time), after
Peter Fraser consulted the
Cabinet; although as Chamberlain's broadcast was drowned by static, the Cabinet (led by Fraser as Prime Minister
Michael Savage was terminally ill) delayed until the Admiralty announced to the fleet a state of war, then backdated the declaration to 9.30 pm.
South Africa took three days to make its decision (on 6 September), as the Prime Minister General
J. B. M. Hertzog favoured
neutrality but was defeated by the pro-war vote in the Union Parliament, led by General
Jan Smuts, who then replaced Hertzog. Canadian Prime Minister
Mackenzie King declared support for Britain on the day of the British declaration, but also stated that it was for Parliament to make the formal declaration, which it did so one week later on 10 September. Ireland, which had been a dominion until 1937, remained
neutral.
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