Which of the following reasons do you believe motivated the United States to adopt a policy of imperialism in the late 19th century? Competition with European powers National security Economic secur

Which of the following reasons do you believe motivated the United States to adopt a policy of imperialism in the late 19th century?

• Competition with European powers
• National security
• Economic security and the securing new markets
• To help improve the political and economic status of other nations/people 

Provide examples of political decisions and events that support your opinion and discuss the impact at home and overseas as a result of US imperialism. Make sure to cite all sources.