Are you asking "how did US movie companies change the Japanese?"
and how did change the US government
It did not change until WWII.
Little change, cold war continued.
The size of the US increased by one third.
The US was seen as a World Power.
no
no
Immediate mobilization, a declaration of war, and industrial change to war production.
the war ended slavery. in addition the north won it but lost many men.
The Reds now knew the US would stand up to them.
It became more peacful.