So people will die!!!!!!!!!!
The answer is by merchants.
It spread through the Silk road and paths to china and japan.
They were able to trade among the other colonies to get the goods and supplies they needed in order to grow \
Adena and Hopewell tribes
Answer:
Brinkmanship: Use a superior show of force to bluff the enemy into backing down.
Domino Theory: If one nation succumbs to Communism, it will set off a chain reaction in the region.
Containment: The main U.S. goal was to prevent Communism from spreading.
