On their lp Psychedelic Shack.
Edwin Starr [with The Undisputed Truth on backing vocals; n°1 US; still faces radio bans any time a military conflict comes too close for comfort]
Bruce Springsteen [introducing his live version with the message: "In 1985 blind faith in your leaders or anything will get you killed"; top 10 US]
Motown wasn't the most obvious record label for an anti war song, not even in 1970. Berry Gordy's first choice was to launch it as an album track, not as a single. He didn't want to risk a good running band as The Temptations for what he considered an unpatriotic cause. That's why the single release was for newcomer Edwin Starr.