Warfare has been a staple of cinema across every genre, ranging from comedic satires to dark and gritty war dramas that explore all sides of combat. Science fiction has been a particularly strong genre, with many franchises musing about the potential for warfare in the future, and how evolving technologies will shape future conflict. Naturally, the genre has produced many great movies dedicated to these fantastical futures (and pasts) and the nature of their armies.
Source：https://www.cbr.com/powerful-armies-sci-fi-movies-shows/
