Written by Joe Haldeman, The Forever War is a thought-provoking space war science fiction novel. It tells the story of William Mandella, a soldier who is sent to fight in an interstellar war against an alien species known as the Taurans. Due to the effects of time dilation, Mandella experiences time differently than those on Earth, leading to a series of disorienting and challenging experiences. The Forever War explores themes of war, identity, and the human condition in a unique and compelling way.