Any list of Vietnam War protest songs must include Edwin Starr's 1970 classic "War (What Is It Good For?)." http://www.legacy.com/ns/news-story.aspx?t=edwin-starr-against-the-war=1292
Découvrez War par Edwin Starr sur Deezer
War, Edwin Starr, charted in 1970
This classic tune, "War" by Edwin Starr, evidently points out that war is "good for absolutely nothing" in a jazzy aggressive tone. This is a video made of war footage.
Contact - Edwin Starr 1978 - YouTube
War - Edwin Starr (Original Vinyl)
Shades of Blue - "Oh How Happy." Read the story of the 1966 hit: http://popdose.com/soul-serenade-shades-of-blue-oh-how-happy/