The "Road to Civil War" which led up to this limited series ran through Amazing Spider-Man (Marvel, 1999 series) #529-531, Fantastic Four (Marvel, 1998 series) #536, 537 and the New Avengers: Illuminati (Marvel, 2006 series) #1 one-shot.
There was a Civil War: Opening Shot giveaway to promote the limited series and a number of one-shots and crossovers that tied in.
The Civil War crossover comics are as follows:
[Limited Series]
- Civil War: Front Line (Marvel, 2006) #1-11;
- Civil War: X-Men (Marvel, 2006 series) #1-4;
- Civil War: Young Avengers & Runaways (Marvel, 2006 series) #1-4;
[Crossovers]
- Amazing Spider-Man (Marvel, 1999 series) #532-538;
- Black Panther (Marvel, 2005 series) #18, 23-25;
- Cable and Deadpool (Marvel, 2004 series) #30-32;
- Captain America (Marvel, 2004 series) #22-25;
- Fantastic Four (Marvel, 1998 series) #538-543;
- Heroes for Hire (Marvel, 2006 series) #1-3;
- Iron Man (Marvel, 2005 series) #13, 14;
- Ms. Marvel (Marvel, 2006 series) #6-8;
- New Avengers (Marvel, 2005 series) #21-25;
- Punisher War Journal (Marvel, 2006 series) #1-3;
- She-Hulk (Marvel, 2005 series) #8;
- Thunderbolts (Marvel, 2006 series) #103-105;
- Wolverine (Marvel, 2003 series) #42-47;
- X-Factor (Marvel, 2005 series) #8, 9;
[One-Shots]
- Iron Man / Captain America: Casualties of War (Marvel, 2007 series) #1;
- Civil War: Choosing Sides (Marvel, 2007 series) #1;
- Civil War: The Confession (Marvel, 2007 series) #1;
- Civil War: The Initiative (Marvel, 2007 series) #1;
- Civil War: The Return (Marvel, 2007 series) #1;
- Civil War Files (Marvel, 2006 series) #1;
- Civil War: Battle Damage Report (Marvel, 2007 series) #1;
- Civil War: War Crimes (Marvel, 2007 series) #1.
There were four comic-sized reprint books that collected various one shots and stories including Civil War:
- Civil War: Casualties of War (Marvel, 2007 series) #[nn];
- Civil War: Amazing Spider-Man (Marvel, 2007 series) #[nn];
- Civil War: Black Panther War Crimes (Marvel, 2007 series)#[nn];
- Civil War: Thunderbolts Swimming With Sharks (Marvel, 2006 series) #[nn]
There was also Civil War Chronicles (Marvel, 2007 series) #1-12 which reprinted the entire limited series with various crossovers.
There was a parody one-shot entitled Ultimate Civil War: Spider-Ham (Marvel, 2007 series) #1 which came out during the run of the limited series as well as a What If? Civil War (Marvel, 2008 series) #1 one-shot and a Civil War: House of M (Marvel, 2008 series) #1-5 limited series that were published after the series concluded.
Civil War was followed-up by a short crossover event entitled "Casualties of War" which ran through:
- Blade (Marvel, 2006 series) #5;
- Ghost Rider (Marvel, 2006 series) #8-11;
- Moon Knight (Marvel, 2006 series) #7-9;
- Winter Soldier: Winter Kills (Marvel, 2007 series) #1;
- Wolverine (Marvel, 2003 series) #48.
"Casualties of War" was immediately followed by "The Initiative" crossover which ran through a number of comics as well as launched a few new series and limited series.