they didn't. Germany invaded Belgium in a sense to draw french and british troops to aid their ally. in the process, Germany flanked the french and british forces cutting their troops in halves which eventually led to the fall of France. one of the biggest questions early on in the war is why France didn't retaliate to the invasion of Poland considering it neighbored Germany. so, France and Britain declared war once the Germans invaded belgium.
Yes, both France and Britain has a guarantee to protect the sovereignty of Poland. They Declared war on Germany on the 3rd September 1939 a mere 2 days after the German invasion of Poland began.
No.
The Protocol of War is that when somebody has declared on you, you do not have to declare war on them in order to engage them in hostilities (otherwise you would be waiting until your parliament gave you permission to fight which would result in the "Belgian Peacekeeper scenario" or worse). Therefore Nazi Germany did not have to declare war on Britain. It was assumed that they would engage Britain on the battlefield after the British declared war on September 3, 1939.
England and France had an agreement with Poland that they would come to her defense should ANY nation invade. Germany did - France and England lived up to their bargain.
When Germany invaded Poland on September 7, 1939 and quickly overran it.
Poland
As dictated by a promise made, France and Britain immediately declared war on Germany after the invasion of Poland.
Britain and France on 3rd September 1939 and Poland 2 days before on 1st September
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!
4 September 1939 because New Zealand was one of the first countries to be involved in the global conflict precipitated by Germany's invasion of Poland on 1 Sept. It was a consequence of Britain's defence pact with Poland, and consequent war declaration on the 3 Sept, and many British commonwealth countries were of course directly affected.
The German invasion of Poland on September 1, 1939.
The dislike of Germany from multiple countries began after their invasion of Poland. During WWII, the first two countries to declare war on Germany were Great Britain and France.
To response to Germany invasion of Belgium.
The 1939 invasion of Poland caused Britain to declare war on Germany, which started WWII.
To response to Germany invasion of Belgium.
As dictated by a promise made, France and Britain immediately declared war on Germany after the invasion of Poland.
The invasion of Poland which began in September 1939
the invasion of Poland in Sept 1939
Britain and France on 3rd September 1939 and Poland 2 days before on 1st September
England did not declare war on Germany. Great Britain did. England is not an independent nation. Nonetheless the Answer is still Poland.
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!
4 September 1939 because New Zealand was one of the first countries to be involved in the global conflict precipitated by Germany's invasion of Poland on 1 Sept. It was a consequence of Britain's defence pact with Poland, and consequent war declaration on the 3 Sept, and many British commonwealth countries were of course directly affected.
The invasion of the Poland was the invasion that got Britain and France to declare war. Now they had been taking countries one by one (hitler). He was taking countries and kept saying "this is the last one". In Mein Kampf he even stated that he was heading towards world domination. In only 6 weeks though, Germany conquered France in a remarkable success and it shocked the world.