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Invasion of Poland Sep. 1 1939.
They declared war to Germany at the beginning of the invasion of Poland.
Alongside France, Britain gave Germany a time limit to stop their invasion, when no reply was received they declared war on Germany.
As dictated by a promise made, France and Britain immediately declared war on Germany after the invasion of Poland.
On 1st September 1939, German troops invaded Poland. In response to that invasion, Britain and France declared war on Germany on 3rd September 1939.
When the Germans violated British neutrality to reach France, Britian declared war on Germany.
France and Spain both protected the United States from Great Britain, but the alliance with France (Treaty of Alliance) wasn't signed until 1778, after which Great Britain declared war on France, and Spain entered the war soon after as the ally of France.
Britain and France on 3rd September 1939 and Poland 2 days before on 1st September
France and Spain both protected the United States from Great Britain. The alliance with France (Treaty of Alliance) was signed in 1778, after which Great Britain declared war on France, and Spain entered the war soon after as the ally of France.
Britain and France declared war on Germany on September 3, 1939, following Germany's invasion of Poland on September 1. Both countries had guaranteed Poland's sovereignty and were committed to responding to any aggression against it. The invasion violated existing treaties and escalated tensions in Europe, prompting Britain and France to take action against Nazi Germany to uphold their commitments and deter further aggression.
France and Britain declared war on Germany in response to the invasion of Poland
The invasion of Poland by the Russians was scarcely even noticed. What grabbed all the headlines was the invasion on the 1st September 1939 by the Germans. On the 3rd Britain & France declared war.