"War" is a counterculture-era soul song written by Norman Whitfield and Barrett Strong for the Motown label in 1969. Whitfield first produced the song – a blatant anti-Vietnam War protest – with The Temptations as the original vocalists. After Motown began receiving repeated requests to release "War" as a single, Whitfield re-recorded the song with Edwin Starr as the vocalist, with the label deciding to withhold the Temptations' version from single release so as not to alienate their more conservative fans. Starr's version of "War" was a number-one hit on the Billboard Hot 100 chart in 1970, and is not only the most successful and well-known record of his career, but it is also one of the most popular protest songs ever recorded. It was one of 161 songs on the Clear Channel no-play list after September 11, 2001.

The song's power was reasserted when Bruce Springsteen and the E Street Band took their rendition into the U.S. Top 10 in 1986. It was also covered by Frankie Goes to Hollywood in 1984, and more recently by the Rock band Black Stone Cherry on its 2016 album Kentucky.

The Temptations' version of "War", featuring Paul Williams and Dennis Edwards on lead vocals, was much less intense than the Edwin Starr version. Williams and Edwards deliver the song's anti-war, pro-peace message over a stripped-down instrumental track, with bass singer Melvin Franklin chanting a repeated recruit training-like "hup, two, three, four" in the background during the verses.

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