Secret War is a 2004–2005 five-issue comic book limited series published by Marvel Comics. The series is written by Brian Michael Bendis and painted by Gabriele Dell’Otto. It is loosely based on classified operations told to Bendis by an anonymous high-ranking officer in the United States Intelligence Community during Bendis’ childhood.
The storyline involves a large-scale super-hero crossover featuring Marvel characters such as Spider-Man, Captain America, Wolverine, Daredevil, Luke Cage and Nick Fury fighting a wide array of super-villains who have received hi-tech armaments from a mysterious benefactor.
The first issue was published in April 2004, and though intended originally as a bimonthly publication, it faced long delays. It was completed with issue five’s publication in December 2005.
The aftermath of the series was explored in stories in The Pulse and Bendis has gone on to use many of the same characters in his New Avengers titles. This event begins an eight-year-long series of cross-over events ending with Avengers vs. X-Men.