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This one is World War One oriented.

Basically, the Germans originally promised the Belgians that they were just going to walk through Belgium to get at the French and had no intention of going to war with Belgium.

France planned on invading Belgium if the Belgians granted the German army transit through Belgium.

The Belgians resisted, Germany attacked Belgium, and Britain entered the war against Germany.

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Now. What if Belgium had agreed to Germany's request and France declared war upon Belgium as planned?

Would Britain have entered the war as an enemy of France?

Stayed out of it? Because I'm pretty sure the requested transit means the Belgians giving up neutrality.
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