No Wider War is the second volume of a two-part exploration of America's involvement in Indochina from the end of World War II to the Fall of Saigon.

Following on from the first volume, In Good Faith, which told the story from the Japanese surrender in 1945 through America's involvement in the French Indochina War and the initial advisory missions that followed, it traces the story of America's involvement in the Vietnam War from the first Marines landing at Da Nang in 1965, through the traumatic Tet Offensive of 1968 and the gradual Vietnamisation of the war that followed, to the withdrawal of American forces and the final loss of the South in 1975.

Drawing on the latest research, unavailable to the authors of the classic Vietnam histories, including recently declassified top secret National Security Agency material, Sergio Miller examines in depth both the events and the key figures of the conflict to present a masterful narrative of America's most divisive war.