In Good Faith is the first of a two-volume, accessible narrative history of America's involvement in Indochina, from the end of World War II to the Fall of Saigon in 1975. The books charts the course of America's engagement with the region, from its initially hesitant support for French Indochina through the advisory missions following the 1954 Geneva Accords, then on to the covert war promoted in the Kennedy years, then escalation to total war in the Johnson era, and finally to the liquidation of the American war under Nixon.

Drawing on the latest research, unavailable to the authors of the classic Vietnam histories, these two volumes tell the whole story for the first time, including the truth behind the events of the 1964 Gulf of Tonkin incident, which opened the door to Washington's entry into the war, and which can now be told in full thanks to recently declassified National Security Agency top-secret material. Examining in depth both the events and the key figures of the conflict, this is a definitive new history of American engagement in Vietnam.