Hirohito was the Japenese Emperor during World War 2 and he had control over the Imperial Japense forces at that time.
Increased involvement in the war
the cause
1941
they were a allie.
There was none....
How_did_the_us_involvment_in_World_War_2_escolate
Victory.
1945
Supplying Allies with weapons
The Japanesse surrender.
to help! XD
December 7th 1941