Final answer:
Before the Spanish-American War, U.S. foreign policy was characterized by Expansionism. After the war, it shifted towards Isolationism.
Step-by-step explanation:
Before the Spanish-American War, the foreign policy of the U.S. was characterized by Expansionism. The U.S. expanded its influence by acquiring new territories and exerting control over other nations. However, after the war, the U.S. shifted towards an Isolationist foreign policy. This meant that the U.S. focused on staying out of international conflicts and maintaining a policy of non-interference in the affairs of other nations.
Learn more about U.S. foreign policy before and after the Spanish-American War