Respuesta :
Answer: it was their duty to spread democracy.
Explanation:
Manifest Destiny was an idea that was really famous in the 19th century with Americans. It was the idea that Americans were destined by God to spread across North America, the ideas of capitalism and democracy.
This type of thought drove Americans increasingly westward as they pushed to reach the Pacific and gave them 'justification' for the eviction of Native tribes from their ancestral lands.