1934
Germany
They were allies with Germany.
Germany declared war on the US on 11 December 1941. In the hopes that Japan would declare war on Russia.
The British had promised the Belgians that they would support them if Germany attacked them. When Germany invaded Belgium, Britain declared war on Germany.
Great Britain declared war on Germany in September 1939 after Germany invaded Poland.
April 7, 1917. Declared war on Germany.
The British had promised the Belgians that they would support them if Germany attacked them. When Germany invaded Belgium, Britain declared war on Germany.
England entered the war when Germany invaded Poland in 1939.
The brits asked them to
Because Bulgaria allied with Germany
No. The Soviet Union did enter World War 2 but on the other side. Germany invaded and then forced the Soviet Union into the war