What does the Vietnam War Golden Melody mean?

The golden melody of the Vietnam War means: Speaking of the Vietnam War, it can be said that it was a war that affected the United States. Never before has a war had such a profound cultural impact on America. For Americans at that time, the Vietnam War seemed to be a locust-like helicopter, with orange agent all over the sky, enemies everywhere and hard to find in the jungle, and death would suddenly come. This unjust war has brought great impact on American spirit and culture, among which many songs describing the Vietnam War were born, the most famous of which is The Lucky Son.