Book excerpt: Based on new archival research in many countries, this volume broadens the context of the U.S. intervention in Vietnam. Its primary focus is on relations between China and Vietnam in the mid-twentieth century; but the book also deals with China's relations with Cambodia, U.S. dealings with both China and Vietnam, French attitudes toward Vietnam and China, and Soviet views of Vietnam and China. Contributors from seven countries range from senior scholars and officials with decades of experience to young academics just finishing their dissertations. The general impact of this work is to internationalize the history of the Vietnam War, going well beyond the long-standing focus on the role of the United States.