Drafted into an interstellar war against an alien species, soldier William Mandella discovers that relativistic time dilation means each tour of duty sends him centuries into an Earth he no longer recognizes, where human society has transformed beyond all familiarity. A rigorous, deeply personal anti-war novel drawing on Haldeman's own Vietnam service, examining the alienation of veterans and the senselessness of military-industrial conflict. A Hugo and Nebula Award winner.