troops in various regions of the so-called ' SunniРІР‚вЂ¦Triangle', especially in Baghdad and in the regions around Fallujah and Tikrit. military noticed a gradually increasing flurry of attacks on U.S. In May 2003, after the Iraqi conventional forces had been defeated and disbanded, the U.S. Finally, as OРІР‚в„ўHanlan says, the porous borders of Iraq and the subsequent foreign insurgents also bolstered the insurgency. Prisoners let out of prison by SaddamРІР‚вЂ¦Hussein before his disappearance provided another source both of insurgent recruits and of organized crime factions. While 80% the officers were Sunni, the rank and file of the regular army was 80% Shia. However, many lost their jobs and pensions with the disbandingРІР‚вЂ¦ofРІР‚вЂ¦theРІР‚вЂ¦IraqiРІР‚вЂ¦army by Bremer this, and the unwillingness of the Coalition Provisional Authority to negotiate with former Ba'ath elements, provided impetus for the initial insurgency. Initially, most former members of the Ba'ath Party and former Iraqi soldiers expressed a willingness to compromise with the Coalition forces. Former members of the security services of the BaРІР‚в„ўath regime, former military officers, and some other BaРІР‚в„ўath Party members are cited as members of insurgent groups indeed, these elements formed the primary backbone of the nascent insurgency. Members of insurgent groups came from a variety of sources. The de-BaРІР‚в„ўathification Commission set up by the CoalitionРІР‚вЂ¦ProvisionalРІР‚вЂ¦Authority, the nature of selection of the Governing Council, and other policy decisions were interpreted by Sunni Arabs as actions intended to single out their community for discrimination this encouraged the beginnings of sectarian tensions. A number of factions felt suspicious of long-term American intentions the conduct of some American soldiers also served to heighten tensions. Another cause of resentment was the lack of immediate humanitarian aid and reconstruction efforts for Iraqis suffering from the invasion, the long-term effects of the repression and mismanagement of the Saddam Hussein regime, and international sanctions. Additionally, the unexpectedly quick implosion of Saddam Hussein's regime meant that the invading forces never engaged and decisively defeated his military in any major battle the Iraqi armed forces simply dispersed, often with their weapons, back to their homes. The rampant looting during this time period, and the inability of U.S.-led forces to control the situation, led to Iraqi resentment. Invading U.S.-led forces were unable to immediately fill the power vacuum caused by the sudden collapse of a highly centralized state authority, resulting in weeks of virtual anarchy.

2003 1stРІР‚вЂ¦Baghdad 2ndРІР‚вЂ¦Baghdad Najaf 3rdРІР‚вЂ¦Baghdad 1stРІР‚вЂ¦Nasiriyah 1stРІР‚вЂ¦Karbala 2004 РІР‚РЋРІР‚вЂ¦1stРІР‚вЂ¦Erbil РІР‚РЋРІР‚вЂ¦Ashoura 1stРІР‚вЂ¦Basra 1stРІР‚вЂ¦Mosul 4thРІР‚вЂ¦Baghdad 5thРІР‚вЂ¦Baghdad KarbalaРІР‚вЂ¦&РІР‚вЂ¦Najaf 1stРІР‚вЂ¦Baqubah Kufa Marez 2005 SuwairaРІР‚вЂ¦bombing РІР‚РЋРІР‚вЂ¦1stРІР‚вЂ¦AlРІР‚вЂ¦Hillah 2ndРІР‚вЂ¦Erbil РІР‚РЋРІР‚вЂ¦Musayyib 6thРІР‚вЂ¦Baghdad РІР‚РЋРІР‚вЂ¦7thРІР‚вЂ¦Baghdad 1stРІР‚вЂ¦Balad Khanaqin 2006 РІР‚РЋРІР‚вЂ¦Karbala-Ramadi 1stРІР‚вЂ¦Samarra 8thРІР‚вЂ¦Baghdad 9thРІР‚вЂ¦Baghdad РІР‚РЋРІР‚вЂ¦10thРІР‚вЂ¦Baghdad 2007 11thРІР‚вЂ¦Baghdad 12thРІР‚вЂ¦Baghdad РІР‚РЋРІР‚вЂ¦13thРІР‚вЂ¦Baghdad 14thРІР‚вЂ¦Baghdad 15thРІР‚вЂ¦Baghdad РІР‚РЋРІР‚вЂ¦2ndРІР‚вЂ¦AlРІР‚вЂ¦Hillah РІР‚РЋРІР‚вЂ¦1stРІР‚вЂ¦TalРІР‚вЂ¦Afar 16thРІР‚вЂ¦Baghdad 17thРІР‚вЂ¦Baghdad 2ndРІР‚вЂ¦&РІР‚вЂ¦3rdРІР‚вЂ¦Karbala 2ndРІР‚вЂ¦Mosul РІР‚РЋРІР‚вЂ¦18thРІР‚вЂ¦Baghdad Makhmour AbuРІР‚вЂ¦Sayda 2ndРІР‚вЂ¦Samarra 19thРІР‚вЂ¦Baghdad РІР‚РЋРІР‚вЂ¦Amirli 1stРІР‚вЂ¦Kirkuk 20thРІР‚вЂ¦Baghdad 21stРІР‚вЂ¦Baghdad Р’В§РІР‚вЂ¦Qahtaniya Amarah 2008 22ndРІР‚вЂ¦Baghdad 2ndРІР‚вЂ¦Balad 23rdРІР‚вЂ¦Baghdad 4thРІР‚вЂ¦Karbala 24thРІР‚вЂ¦Baghdad Karmah 2ndРІР‚вЂ¦Baqubah Dujail BaladРІР‚вЂ¦Ruz 2009 25thРІР‚вЂ¦Baghdad 26thРІР‚вЂ¦Baghdad Baghdad-Muqdadiyah Taza 27thРІР‚вЂ¦Baghdad 2ndРІР‚вЂ¦Kirkuk 2ndРІР‚вЂ¦TalРІР‚вЂ¦Afar РІР‚РЋРІР‚вЂ¦28thРІР‚вЂ¦Baghdad РІР‚РЋРІР‚вЂ¦29thРІР‚вЂ¦Baghdad РІР‚РЋРІР‚вЂ¦30thРІР‚вЂ¦Baghdad 2010 31stРІР‚вЂ¦Baghdad 32ndРІР‚вЂ¦Baghdad 3rdРІР‚вЂ¦Baqubah 33rdРІР‚вЂ¦Baghdad 34thРІР‚вЂ¦Baghdad 35thРІР‚вЂ¦Baghdad РІР‚РЋРІР‚вЂ¦1stРІР‚вЂ¦Pan-Iraq 36thРІР‚вЂ¦Baghdad 37thРІР‚вЂ¦Baghdad 2ndРІР‚вЂ¦Pan-Iraq 38thРІР‚вЂ¦Baghdad 39thРІР‚вЂ¦Baghdad РІР‚РЋРІР‚вЂ¦40thРІР‚вЂ¦Baghdad 2011 41stРІР‚вЂ¦Baghdad РІР‚РЋРІР‚вЂ¦3rdРІР‚вЂ¦Pan-Iraq Karbala-Baghdad 42ndРІР‚вЂ¦Baghdad Tikrit 3rdРІР‚вЂ¦AlРІР‚вЂ¦Hillah 3rdРІР‚вЂ¦Samarra AlРІР‚вЂ¦Diwaniyah Taji 4thРІР‚вЂ¦Pan-Iraq 43rdРІР‚вЂ¦Baghdad 4thРІР‚вЂ¦Karbala 44thРІР‚вЂ¦Baghdad 2ndРІР‚вЂ¦Basra 45thРІР‚вЂ¦BaghdadР”Р„ number of factors played into the initial birth of the insurgency in Iraq. РІР‚РЋ indicates attacks resulting in over 100 deaths Р’В§ indicates the deadliest attack in the Iraq War This list only includes major attacks.

Iraqi insurgency