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By Nazi Germany invading Poland, and Britain's ally, France joining Britain in declaring war against Germany, which in turn led Japan to declare war against Britain and France, which then escalated the war from a pan European to Global (eventually).

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Q: How did Britain start war in World War 2?
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Related questions

How did Britain start World War I?

Britain did not start World War 1. Technically, a Serbian nationalist named Gavrillo Princip killed Austrian heir to the throne Archduke Franz Ferdinand which was the final event that sparked the war to begin.

Why did Australia declare war on Germany at the start of World War 2?

Because of its Loyalty to Great Britain.

Did Britain start World War 1?

German started WW1

What was the official start of World War 2?

3 September 1939: France and Britain declared war on Germany

Why did wrld war 2 start?

world war 2 started because Britain was fighting Germany to get freedom from them

What war is Great Britain World War I or World War 2?

Great Britain, or more correctly The United Kingdom of Great Britain and Northern Ireland, was involved in both World War 1 and World War 2.

Was Europe in World War I?

Yes, they entered from the start as Great Britain

How did the start of world war 2 differ from the start of world war 1?

on the 1st September 1939 Germany invaded Poland Britain declared war 2 days later on the 3rd September 1939

What made War World 2 start?

France and britain declared war germany because germany invaded poland

Where did the Germans invade to start world war 2?

Great Britain and France declared war on Germany, when Germany invaded Poland - so began the second World War in Europe.

Who was the Prime-Minister of Great Britain at the start of world war 2?

Neville chamberlain

Why did the Japanese start World War 2?

They didn't, it was Germany who started it. The US and Britain had the policy of appeasement which led to the escalation of the War.