Although the song, written by Norman Whitfield and Barrett Strong in 1969, was one of the most popular anti-Vietnam War songs of the era, Starr admitted in his private notes that there were some technical inaccuracies in the lyrics.

"While there are certainly many aspects of war I don't like, my initial assessment that it is good for 'absolutely nothing' was a bit misguided," Starr, who died in 2003, wrote in his personal diary. "I now realize that, despite war's shortcomings, it plays a vital role in the economics of our country."

Starr's diary went on to say that when he initially performed the song in 1970, statistical data about job creation in the defense industry was not yet available. Nowadays, he said, defense giants like Lockheed Martin and Raytheon provide stable, well-paying jobs to thousands of Americans across the country.