imperialism

2. stated that not only were the nations of the Western Hemisphere not open to colonization by European powers, but that the United States had the responsibility to preserve order and protect life and property in those countries
4. a policy of extending a country's power and influence through diplomacy or military force.
5. The U.S. acquired by purchasing it from Russia in 1867 for $7.2 million.

1. a sensationalized, often biased style of newspaper reporting that prioritized dramatic or lurid headlines and stories over factual accuracy, particularly prevalent in the late 19th century.
3. The U.S. acquired after a bloodless capture during the Spanish-American War in 1898.