Answer:
Explanation:
Roosevelt supervised the mobilization of the U.S. economy to support the war effort, and implemented a Europe first strategy, making the defeat of Germany a priority over that of Japan.
is steam engine one of the options?
Answer:
It helped s[read Christianity because during Pax Romana, there is end to killing of Christians and it helped them to be free to spread their religion. Also during a time of peace people would be willing to listen to them and open up to the peaceful religion.