Beginning of April 2009 , ' Sunni insurgent groups ' warned that they would step up attacks against US troops and Iraq 's Shiite-led government . Between 7 and 22 April , 10 bomb attacks killed 74 people . Two more suicide attacks on 23 April 2009 , causing 76 deaths , were without evidence attributed to ' AQI-affiliated ' groups . Additional suicide bombings brought the number of Iraqis killed in bombings that month on 350
Two more suicide attacks on 23 April 2009
23 April 2009 Iraqi suicide attacks
Islamic State of Iraq