The Forever War, written by Joe Haldeman, is a groundbreaking space war science fiction novel that explores the effects of time dilation on interstellar warfare. The story follows William Mandella, a soldier who is sent to fight in an interstellar war against an alien species known as the Taurans. Due to the time it takes to travel between star systems, Mandella experiences time dilation, causing him to age at a slower rate than those on Earth. As the war stretches on for centuries, Mandella must grapple with the consequences of his prolonged service and the changes in society that occur during his absence.
