What is the author's tone in Bloods: An Oral History of the Vietnam War by Black Veterans by Wallace Terry?

The tone of the book is predominantly subjective. Each veteran relates his experience, his feelings, his thoughts, and his conclusions about the war. Although many of the soldiers reach similar conclusions about the war no two have identical experiences. The reader often realizes fairly quickly how the particular speaker feels about his service in Vietnam. Many of the men are vehement in their speech making it obvious that the war produced deep wounds that have shaped their entire lives.