How did the threat of communism during the Cold War affect the United States and the world?

Ineed asap! ! what is the name of the system in which each branch of the u.s government can limit the actions of the other branches? a. perpetual union b. division of powers c. cooperative federalism d. checks and balances

What is significant about the power that russian federal cities are granted?

Name at least three countries neaolpeon controlled