Joe William Haldeman is an American science fiction author.

The Forever War (1974) is a military science fiction novel by American author Joe Haldeman, telling the contemplative story about human soldiers fighting an interstellar war against an alien civilization known as the Taurans. It won the Nebula Award in 1975 and the Hugo and Locus awards in 1976. Forever Free (1999) and Forever Peace (1997) are, respectively, direct and thematic sequel novels. The novella A Separate War (1999) is another sequel of sorts, occurring simultaneously with the final portion of The Forever War. Informally, the novels comprise The Forever War series; the novel also inspired a comic book and a board game. The Forever War is the first title in the SF Masterworks series.