How are America and the Soviet Union different?

The Soviet Union and the U.S. worked together during World War II, but after the war ended they quickly became enemies

The U.S. and the Soviet Union had different ideas about how to run an economy (business) and government.

The U.S. believed in Capitalism – a system where ordinary people and businesses control the production of goods and services.

Explanation:

i think it was because of how protected egyptian civilization was was which allowed them to evolve without much outside influence.