Final answer:
The subjects mentioned are related to the history of the United States and its foreign policy in the 19th and early 20th centuries, including the influence in Central America and the Caribbean, the Spanish-American War, and the Monroe Doctrine.
Step-by-step explanation:
The subjects mentioned in your question are related to the history of the United States and its foreign policy in the 19th and early 20th centuries.
The Banana Republics refers to the political and economic influence of the United States in Central America and the Caribbean, particularly in countries known for their banana exports.
The Spanish-American War was a conflict between the United States and Spain in 1898, which resulted in the United States gaining control over the former Spanish colonies of Cuba, Puerto Rico, Guam, and the Philippines.
The Monroe Doctrine was a foreign policy statement issued by President James Monroe in 1823. It stated that the United States would oppose any European colonization or intervention in the Americas and considered it as a potential threat to its own security and interests.