2003 invasion of Iraq
March 20 – May 1, 2003 · Iraq
Result Coalition victory
A US-led coalition with Britain, Australia and Poland invaded Iraq and overthrew Saddam Hussein's government in about a month. The occupation that followed led to a long insurgency.
Coalition
Iraq
Other
Units
Delta Force
Joint Special Operations Command
I Marine Expeditionary Force
III Marine Amphibious Force
101st Airborne Division
1st Marine Division
2nd Marine Division
3rd Brigade Combat Team, 10th Mountain Division
4th Brigade Combat Team, 10th Mountain Division
11th Marine Regiment
14th Infantry Regiment (United States)
15th Marine Expeditionary Unit
17th Cavalry Regiment (United States)
184th Infantry Regiment (United States)
186th Infantry Regiment (United States)
187th Infantry Regiment (United States)
1st Air Defense Artillery Regiment
1st Marine Regiment
24th Marine Expeditionary Unit
35th Infantry Regiment (United States)
41st Infantry Regiment (United States)
4th Battalion, Royal Australian Regiment
5th Cavalry Regiment
7th Infantry Regiment (United States)
87th Infantry Regiment (United States)
1st Reconnaissance Battalion
2nd Battalion, 4th Marines
2nd Light Armored Reconnaissance Battalion
3rd Battalion, 1st Marines
3rd Ranger Battalion
4th Tank Battalion (United States)
United States Navy SEALs
Royal Air Force
Fedayeen Saddam
Iraqi Republican Guard
1st Hammurabi Armoured Division
2nd Al Medina Armored Division
4th Division (Iraq)
4th Marine Division
6th Division (Iraq)
80th Air Assault Brigade
95th Air Assault Brigade
111th Infantry Regiment (United States)
13th "Shavnabada" Light Infantry Battalion
21st Infantry Regiment (United States)
Iraqi Navy
Carrier Air Wing Eight
Battles 11
- Operation Viking Hammer March 2003 – March 30, 2003 · PUK Peshmerga-American victory
- Battle of Al Faw (2003) March 20–24, 2003 · Coalition victory
- Battle of Umm Qasr March 21–25, 2003 · Coalition victory
- Battle of Basra (2003) March 21 – April 6, 2003 · Coalition victory
- Battle of Nasiriyah March 23–29, 2003 · Coalition victory
- Battle of Karbala (2003) March 23 – April 6, 2003 · U.S. victory
- Battle of Najaf (2003) March 24 – April 4, 2003 · Coalition victory
- Operation Northern Delay March 26, 2003 · U.S. victory
- Battle of Samawah March 30 – April 4, 2003 · United States victory
- Battle of the Karbala Gap (2003) April 2–4, 2003 · U.S. victory
- Battle of Debecka Pass April 6–7, 2003 · U.S. and Peshmerga victory



















