Event

Civil War
What Happened
After the New Warrior's altercation with a group of superhuman criminals hiding out in Stamford, Connecticut; a cornered Nitro released his explosive powers killing the New Warriors and approximately 600 civilians.

The death of innocent civilians prompted the United States government to pass a law requiring all super humans to register.  Superhuman heroes divide along both pro and anti-registration lines which spill into open conflict and Civil War.
Notable Deaths, Destruction or Introduction
Death
 Captain America I
New Warriors
Creators
Mark Millar & Steve McNiven
Pertinent Issues in Order

February 2006
Amazing Spider-Man #529

March 2006
Amazing Spider-Man #530
Fantastic Four #536
New Avengers: Illuminati Special

April 2006
Amazing Spider-Man #531
Civil War Opening Shot Sketchbook
Fantastic Four #537

May 2006
Civil War #1
Marvel Spotlight: Millar/McNiven
Amazing Spider-Man #532
She-Hulk #8
Wolverine #42

June 2006
Civil War #2
Civil War Front Line #1
Civil War Front Line #2
Amazing Spider-Man #533
Fantastic Four #538
New Avengers #21
Thunderbolts #103
Wolverine #43
X-Factor #8

July 2006
Civil War #3
Civil War Front Line #3
Civil War Front Line #4
Civil War: X-Men #1
Civil War: Young Avengers & Runaways#1
Amazing Spider-Man #534
Black Panther #18
Cable & Deadpool #30
Fantastic Four #539
New Avengers #22
Thunderbolts #104
Wolverine #44
X-Factor #9

August 2006
Civil War #4
Civil War Front Line #5
Civil War Front Line #6
Civil War: X-Men #2
Civil War: Young Avengers & Runaways #2
Amazing Spider-Man #535
Cable & Deadpool #31
Fantastic Four #540
Heroes For Hire #1
MS. MARVEL #6
New Avengers #23
Thunderbolts #105
Wolverine #45

September 2006
Civil War #4
Civil War Files
Civil War Front Line #6
Civil War: X-Men #3
Civil War: Young Avengers & Runaways #3
Amazing Spider-Man #535
Cable & Deadpool #32
Captain America #22
Fantastic Four #540
Heroes For Hire #2
Ms. Marvel #7
New Avengers #24
Wolverine #46

October 2006
Civil War: Choosing Sides
Civil War Front Line #7
Civil War: X-Men #4
Civil War: Young Avengers & Runaways #4
Captain America #23
Heroes For Hire #3
Iron Man #13
Ms. Marvel #8
New Avengers #25
Wolverine #47

November 2006
Civil War #5
Civil War Front Line #8
Amazing Spider-Man #536
Captain America #24
Fantastic Four #541
Iron Man #14
Moon Knight #7
Punisher: War Journal #1
Wolverine #48

December 2006
Civil War #6
Civil War Front Line #9
Black Panther #23
Civil War: War Crimes
Iron Man/Captain America Special
Moon Knight #8
Punisher: War Journal #2
Winter Soldier: Winter Kills

January 2007
Civil War #7
Amazing Spider-Man #537
Amazing Spider-Man #538
Black Panther #24
BLADE #5
Civil War Front Line #10
Fantastic Four #542
Fantastic Four #543
Moon Knight #10
Punisher: War Journal #3

February 2007
Civil War Front Line #11
Civil War: Battle Damage Report
Black Panther #25