There have been more than 10 major attacks in Iraq aimed at civilians, the coalition forces, aid workers and the Kurds since the US declared major hostilities over in May 2003. The following are some that have claimed a large number of lives.
10 February 2004: A car bomb outside a police station in the Shia town of Iskandariya kills at least 45 and wounds scores.
1 February 2004: At least 100 are killed and scores wounded by twin suicide bombings during Eid celebrations in the Kurdish city of Irbil.
18 January: Eighteen people are reported killed outside coalition headquarters in Baghdad.
27 December 2003: Nineteen are killed and about 120 wounded when suicide car bombers attack government buildings and foreign troops' bases in the southern Iraqi city of Karbala.
14 December: A car bomb at a police station kills 17 in Khaldiya, west of Baghdad.
Car bombs detonate outside police headquarters and a police station in the town of Khan Bani Saad, killing at least 18 people.
12 November: Twenty-six die in a suicide attack on an Italian base in Nasiriya.
2 November: Sixteen US soldiers die as a Chinook helicopter is downed.
27 October: Red Cross and other buildings in Baghdad are bombed, and more than 30 people are killed.
29 August: A mosque near Najaf is bombed, leaving at least 80 people dead including a top Shia cleric.
19 Aug: UN headquarters in Baghdad is bombed, leaving 23 people dead including the head of the mission.
7 Aug: Seventeen people were killed when a truck bomb exploded outside the Jordanian embassy compound in Baghdad.