You've asked this as a WWII question. In WWII France and Britain declared war on Germany when Germany invaded Poland. This was the latest aggressive move by the militaristic Germans, and the British and French were determined to try to stop Hitler before he took over all of Europe.
In WW ONE the British declared war on Germany when Germany invaded Belgium. The British were among four European Great Powers who had signed a Treaty in 1839 each pledging to perpetually respect and defend the neutrality of Belgium. Prussia had also signed this Treaty and Germany was a successor state to Prussia, the Prussian King was now the German Emperor, and Germany was still bound by its obligations under this Treaty.
In WW ONE the French went to war with Germany because the Germans attacked them. There was immediate fighting along the French-German border as Germans moved in. But this was merely a diversion. The main German attack was coming through Belgium, into the north of France. This was the reason the Germans invaded Belgium in the first place, to go through and get at northern France. This would allow the Germans to avoid the heavy forts and defenses the French had along their border with Germany.
Belgium was a recognized neutral country and when Germany invaded Belgium Britain declared war, defending Belguim's neutrality.
Peace.
because no one likes the french and they have no friends
When Germany invaded Poland, France and England declared war on Germany, this started WWll
Germany invaded Poland privacy and the allies France and Britain declared war
Germany invaded Poland, causing Britain to declare war on the 3rd of September 1939.
World War II officially began after Germany invaded Poland. The invasion of Poland caused England and France to declare war on Germany.
because Hitler invaded our friends (Poland)Britain had a defense treaty with Belgium. When Germany invaded the small dutch-and-french speaking nation, Britain was obligated to issue an ultimatum and, in the case that was ignored, declare war.The Britain declared war on Germany because of the German's invasion of Belgium.
The English did not declare war on Germany, Great Britaindeclared war on Germany because Germany had invaded other European countries with which Great Britain had a mutual defense agreement.
Because Germany invaded Poland.
=Yes. Germanys soilders invaded most of Eruopes contries including France.=
Because at 1 September 1939 Germany invaded Poland.
They said that they would declare war on Germany
I'm learning in class that the Germany invaded Poland and the aliies France and Britain declared war?
Germany started a series of invasions of neighboring Countries. France and England had a treaty with Poland to mutually defend each other. When Germany invaded Poland It was ON!
The UK declared war on Germany in 1939 because Germany invaded Poland, a British ally.
In WW2 the French and Britain said they would declare war on Germany if they attacked Poland. When Nazi Germany invaded Poland France and Britain declared war on Germany. Then Germany stormed French.
When Germany invaded Poland, France and England declared war on Germany, this started WWll
Germany invaded Poland which made Britain and Spain declare war
England and France declared war on Germany after Germany, (and Russia), invaded Poland.