Answer: Russia mobilized along the German border. Russia's mobilization amounted to a declaration of war. On August 1, German government declare war on Russia.
yes
The German Empire and the Austro-Hungarian Empire.
11th December 1941, shortly after German's declaration
after japan attacked pearl harbor and declared war on japan a German Allie
The British declared war on Germany during World War I because Germany violated Belgian neutrality by invading Belgium in August 1914, which was seen as a threat to British interests and potential aggression towards Britain. In World War II, the British declared war on Germany after Germany invaded Poland in September 1939, triggering Britain's declaration of war to honor their commitment to defend Poland's sovereignty.
The German invasion of Poland on 1 September 1939
It caused Great Britain and France to declare war on Germany.
you declare war
Napoleon III felt insulted by a telegram altered by Bismarck
The German attack on Poland on 1 September 1939
The German invasion of Poland on 1 September 1939.