The Forever War
The Forever War is a 1974 military science fiction novel by the American author Joe Haldeman.
The novel is widely perceived to be a portrayal of the author's military service during the Vietnam War, and has been called an account of his war experiences written through a space opera filter.
One aspect of the book is humanity being transformed into homosexual, racially mixed clones and the protagonist's growing feeling of alienation. This may possibly be a reference to the societal changes occurring due to the 1960s counter-culture and Cultural Marxism.