Use the excerpt to answer the question.

There is not enough information in the given excerpt to determine which post-Civil War American movement it represents.

Excerpt from the Platt Amendment

III. That the government of Cuba consents that the United States may exercise the right to intervene for the preservation of Cuban independence, the maintenance of a government adequate for the protection of life, property, and individual liberty, and for discharging the obligations with respect to Cuba imposed by the treaty of Paris on the United States, now to be assumed and undertaken by the government of Cuba.

IV. That all Acts of the United States in Cuba during its military occupancy thereof are ratified and validated, and all lawful rights acquired thereunder shall be maintained and protected.

The excerpt represents the U.S. establishment of friendly leaders in foreign countries, specifically in Cuba. The Platt Amendment established certain conditions that Cuba had to meet to maintain its independence, including granting the United States the right to intervene in Cuban affairs to protect American interests. This intervention was intended to ensure that friendly leaders were in power in Cuba and that American economic and political interests in the country were protected.

I'm sorry, but I would need the specific excerpt in order to accurately determine which post-Civil War American movement it represents.