Explanation:
Athough initially disregarded by the great powers of Europe, the Monroe Doctrine became a mainstay of U.S. foreign policy . In 1823 U.S. President James monroe proclaimed the U.S. protector of the western Hemispere by forbidding European powers from colonizing additional territories in the Americas.
Answer:
Factories, power plants, and utilization of coal
Explanation:
It's cold war if i'm correct
Boston??? It twas the city of boston