1970, Vietnam. While the hell of war seems more interminable and uncertain, a young journalist meets General Sullivan, leading the troops at an American military base lost in the jungle. Soon to be retired, and while he questions the motivations of his country, which he continues to love despite everything, on this conflict, he agrees to give an interview to the journalist. Thus, she learns the incredible story of this man who serves in his fourth conflict ! He lied about his age in 1917, in order to enlist in the expeditionary force leaving for Europe during the First World War, where he fought in the mud of the trenches in France. He'll return to this country, liberated as a unit captain in World War II, where he will face incredible horrors when he invades Germany. As a commander, he also served during the Korean War. From now on, he's mired in a conflict that he's not sure he understands, continuing to serve, but his heart no longer seems to be in it...