America's policy changed from isolationist to more active involvement in the world. Select an I for those items that evidence is
olationism, a W for those for world activism, and an H for those that indicate activism only in the Western Hemisphere. The Panama Canal Early part of World War I The Platt Amendment Before the Spanish-American War The Monroe Doctrine War on the Central Powers The Open Door Policy
The main way in which America's policy changed from isolationist to more active involvement in the world was though the Spanish American War and the Open Door Policy.
