Battle of Nasiriyah, first major conflict during the invasion of Iraq.

The Battle of Nasiriyah was fought between the US 2nd Marine Expeditionary Brigade and Iraqi forces from 23 March to 2 April 2003 during the US-led invasion of Iraq. On the night of 24–25 March, the bulk of the Marines of Regimental Combat Team 1 passed through the city over the bridges and attacked north towards Baghdad. However fighting continued in the city until 1 April when Iraqi resistance in the city was defeated.