America in the World is an impressive collection of documents related to United States foreign policy from the country’s earliest expansionist dreams to its present-day difficulty grappling with terrorism. The book contains chapters on different eras of United States foreign policy, including Vietnam, Korea, and World War II. There are also significant portions of the text that explore less familiar areas of United States diplomatic history, including early expansion, imperialism, and the time after the Cold War began to deescalate.