"Operation: Galactic Storm" was a 19-part comic book crossover storyline which ran through Marvel Comics' Avengers related titles - Avengers, Avengers West Coast, Captain America, Iron Man, Thor, Wonder Man, and Quasar - between March and May 1992. The storyline, which involves the Avengers intervening in an intergalactic war between the alien Kree and Shi'ar empires, is notable among inter-title superhero crossovers for its emphasis on tight plotting and characterization and its downbeat ending.