The document provides an overview of key events in the rise of the United States as a world power from the Spanish-American War through World War II. It discusses factors that drove imperialism in the late 19th century, key events and outcomes of the Spanish-American War, reasons for US entry into World War I, political and social changes during the interwar period, causes and impacts of the Great Depression, US isolationism giving way to involvement in World War II, and how the American home front changed during WWII. The document uses images to illustrate important people, battles, documents, and other elements from this transformative period in US history.