The document is a research paper that examines whether the United States should continue its role as the global police force. It discusses the large economic costs of U.S. military spending abroad and questions whether wars are truly fought for humanitarian reasons or strategic/economic interests. The paper also analyzes the military failures and negative international perceptions that have resulted from U.S. interventions. Overall, the document argues that policing the world is too expensive, ineffective, and damaging to the U.S. image to be sustainable long-term.