It was Technically Germany by Stepping into Poland and breaking the appeasement with France and England.
England did not declare war on Germany. Great Britain did. England is not an independent nation. Nonetheless the Answer is still Poland.
The Invasion Of Poland by Germany in 1939.
When Germany invaded Poland, France and England declared war on Germany, this started WWll
The Germans attacked Poland, this caused England and France to declare war on Germany, so Germany declared war on them.
When did England and France declare war on who? Please clarify.
When did England and France declare war on who? Please clarify.
Poland
England and France declared war on Germany after Germany, (and Russia), invaded Poland.
England and France declared war on Germany after Germany, (and Russia), invaded Poland.
Belgium .
Poland, in late August 1939.