In a work of unprecedented scope, Thomas D. Schoonover combines exhaustive multicountry archival research with a sophisticated theoretical framework grounded in world systems theory to elucidate the relations between the United States and Central America in the late nineteenth and early twentieth centuries. Schoonover's archival research in Central America, Europe, and the United States encompasses public, business, organizational, and individual records. In analyzing this material, Schoonover applies a world systems theory approach with that of social imperialism and dependency theory to underscore the broad, multistate dimension of international affairs. In exploring the international history of Central America, Schoonover describes the role of personalities such as John C. Frémont, Otto von Bismarck, Theodore Roosevelt, Manuel Estrada Cabrera, and José Santos Zelaya; the impact of railroad building and canal projects; and the role of pan-Americanism, nationalism, racism, and anti-Americanism.