 Heinlein's depiction of a futuristic military was also influential.Later science fiction books, such as Joe Haldeman's 1974 anti-war novel "The Forever War", have been described as reactions to "Starship Troopers".The story has been adapted several times, including in a 1997 film version directed by Paul Verhoeven that sought to satirize what the director saw as the fascist aspects of the novel.