American Imperialism after Spanish-American War

a. How did the U.S. change Cuba's Constitution?
The United States changed Cuba's Constitution by adding the Platt Amendment which stated:
•Cuba could not make treaties that might limit its independence or permit a foreign power to control any part of its territory
•the United States reserved the right to intervene in Cuba
•Cuba was not to go into debt
•the United States could buy or lease land on the island for naval stations and refueling stations

b. What did the Roosevelt Corollary build on?
The Roosevelt Corollary was built upon the Monroe Doctrine.

c. Pancho Villa was pursued by whom?
Pancho Villa was pursued by General Pershing.

d. How did the U.S. get the land for the Panama Canal?
After Panama declared its independence from Columbia, the United States was able to come fifteen days later and buy Panama.

e. What is meant by "speak softly and carry a big stick"?
"Speak softly and carry a big stick," meant that their negotiations were always backed by the threat of military force.