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Project Phoenix (Pittsburgh) — an epic alternative rock group out of Pittsburgh, PA.

Project Phoenix (SETI) — a search for extraterrestrial intelligence by listening for radio signals.

Project Phoenix (South Africa) — South African National Defence Force programme to revive its Reserve Force element.

Project Phoenix (Vietnam) — a classified "pacification" program during the latter stages of the Vietnam War that involved widespread torture and murder of some 60,000 Vietnamese under the direction of the US CIA and armed forces.