‡ indicates incidents resulting in over 100 deaths
§ indicates the deadliest incident since the US withdrawal on December 18, 2011.
The Iraqi insurgency was initially a response by Iraqi groups to the U.S.-led invasion of Iraq in 2003. The insurgency has reemerged since the withdrawal of U.S. troops in 2011, resulting in violent conflict with the central government, as well as sectarian violence between Iraq's religious groups. Since the U.S. military's withdrawal, the level of violence has risen, as Sunni militant groups have stepped up attacks targeting the country's majority Shia population to undermine confidence in the Shia-led government and its efforts to protect people without American backup. Armed groups inside Iraq have been increasingly galvanised by the Syrian Civil War. Many Sunni factions stand against Assad regime, which Shia groups have moved to support, and numerous members of both sects have also crossed the border to fight in Syria.
U.S. and Kuwaiti troops unite to close the gate between Kuwait and Iraq after the last military convoy passed through on Dec. 18, 2011, signaling the end of Operation New Dawn and the beginning of the post-U.S. phase of the insurgency
15 December – A martial closing ceremony is held in Baghdad putting a formal end to the U.S mission in Iraq. This ceased direct U.S. combat involvement in the war.
18 December– The last 500 soldiers left Iraq under cover of darkness and under strict secrecy on early morning of 18 December 2011, ending the U.S. military presence in Iraq after nearly nine years.
5 January– A number of bombings took place in Baghdad and Nasiriyah, killing 73 and leaving 149 injured. The bombing in the southern Iraqi city was targeted at crowds of Shi'ite Muslims and killed at least 44, injuring more than 80 others. It was the first major attack in Nasiriyah since a suicide attack against an Italian army base killed 28 in November 2003, including 19 Italians. The Islamic State of Iraq claimed responsibility.
14 January– A suicide bomber detonated his explosives amid a crowd of Shi'ite pilgrims in Basra, killing 53 and injuring 141. This was the deadliest attack in the city since car bombs in April 2004 killed at least 74.
27 January– A suicide bomber attacked a funeral procession in Baghdad's Zaafaraniyah district, killing 32 and injuring more than 70 others.
5 March– A gang of gunmen disguised in military-style uniforms and carrying forged arrest warrants killed 27 police and then hoisted the battle flag of al-Qaeda in a carefully planned early morning attack in Anbar Governorate.
19 April– More than 20 bombs exploded across Iraq, killing at least 36 people and wounding almost 170. The Islamic State of Iraq claimed responsibility.
4 June– A suicide bomber killed 26 people and wounded almost 200 at a Shiite foundation’s offices in Baghdad, sparking fears of sectarian strife at a time of political crisis. The attack in the center of the capital was followed later by an explosion near a Sunni religious foundation, causing no casualties.
October 28 - Car bombings during the last day of Eid left 15 people dead and 33 injured in Baghdad.
November 6 - A car bombing outside an army base in Taji killed 31 people and injured at least 50 others, most of them soldiers. The blast struck as troops were leaving the base and potential recruits were lining up for job interviews.
November 14 - Insurgents staged a number of attacks on the eve of the Islamic New Year, killing 29 and injuring at least 194 others. The deadliest incidents took place in Kirkuk and Hilla, where at least seven bombings killed 19 and left 129 wounded. Other attacks took place in Baghdad, Mosul, Kut, Fallujah and Baqubah.
November 27 - At least 29 people are killed and 126 wounded in eight car bombings across Iraq.
December 16–17 - Two days of consecutive attacks across northern and central Iraq killed at least 111 and injured 299 others. A significant part of the casualties were from a series of blasts in Kirkuk, Baghdad and Tuz Khormato, where at least 34 died and 154 others were injured. Other incidents took place in Mosul, Tarmiyah, Diwaniyah, Dujail, Tikrit and Baqubah, among others. Most of the attacks appeared to target police officers and members of the Iraqi Army.
After a period of calm, renewed political tension within Iraq led to renewed protests, this time mostly centered around the country's Sunni minority. The main cause for upheaval was the ongoing standoff between Vice President Tareq al-Hashemi and Prime Minister al-Maliki, but strained relationships with the Kurdish autonomous regions added to the scene. On December 23, 2012, several thousand Iraqis marched against al-Maliki, responding to his moves against al-Hashemi and other influential Sunni leaders.
January 3 - A car bombing in the central Iraqi city of Musayyib killed 28 Shi'ite pilgrims and injured 60 others as they were returning from Karbala. In the capital Baghdad, a roadside bomb exploded near a minibus, killing 4 pilgrims and leaving 15 wounded.
January 15–16 - A suicide bomber killed a prominent Sunni MP and six others in Fallujah on January 15, two days after Finance MinisterRafi al-Issawi survived an assassination attempt in the same city. The parliamentarian, Ayfan Sadoun al-Essawi, was an important member of the Sons of Iraq committee in Fallujah and part of the opposition to Prime Minister Nouri al-Maliki. On January 16, a suicide bomber detonated a truck full of explosives next to the headquarters of the Kurdistan Democratic Party in Kirkuk, killing 26 and leaving 204 injured. A similar attack against another Kurdish office in Tuz Khormato killed 5 and wounded 40. Roadside bombings and shootings in other areas, including Baghdad, Tikrit and Baiji, left at least 24 dead and 44 injured.
January 22–23 - A wave of attacks in and around Baghdad killed at least 26 and left 58 injured on January 22. Bombings and shootings took place in the capital, as well as Taji and Mahmoudiyah. On the next day, a suicide bomber blew himself up during a funeral for a politician's relative in the city of Tuz Khormato, killing 42 and leaving 75 others wounded. Other attacks across central and northern Iraq killed 7 people and injured 8 others.
On 25 January 2013, ongoing protests by Sunni Muslims in Iraq against the government of Prime MinisterNouri al-Maliki turned deadly in Fallujah, as soldiers opened fire on a crowd of rock-throwing demonstrators, killing 7 and injuring more than 70 others. Three soldiers were later shot to death in retaliation for the incident, and clashes erupted in Askari, on the eastern outskirts of Fallujah. Security forces were placed on high alert as a curfew and vehicle ban were brought into effect. In a statement, Maliki urged both sides to show restraint and blamed the incident on unruly protesters. He also warned that it could lead to a "rise in tension that al-Qaida and terrorist groups are trying to take advantage of".
February 3 - A suicide car bomber detonated his vehicle near the provincial police headquarters in Kirkuk, killing at least 36 and injuring 105 others. Among the wounded was Major General Jamal Tahir, the city's chief of police, who had survived a previous attack at almost the same spot 2 years earlier. Three additional attackers were killed after the initial blast, as they attempted to throw grenades at security forces. Several officers who survived the attack reported that the first bomber was driving a police car and wearing a uniform. When guards at the gate stopped him to check his credentials, he detonated his explosives.
March 4 - Unidentified gunmen ambushed a Syrian Army convoy escorted by Iraqi soldiers in the Battle of Akashat, killing 48 Syrians and 13 Iraqis. The assault took place near the desert border between the two nations in Iraq's Al Anbar Governorate. Authorities suspected the Free Iraqi Army, Jabhat al-Nusra or al-Qaeda in Iraq of being behind the attack. A week later, on March 11, the Islamic State of Iraq claimed responsibility for the attack, stating that they had "annihilated" a "column of the Safavid army," a reference to the Shia Persian dynasty that ruled Iran from 1501 to 1736. The group also claimed that the presence of Syrian soldiers in Iraq showed "firm co-operation" between the Syrian and Iraqi governments.
March 19 - A series of coordinated attacks across the capital Baghdad and several major cities in the north and central parts of the country killed at least 98 people and left 240 others injured. The wave of violence was directed mostly at Shia civilians and took place on the tenth anniversary of the beginning of the Iraq War. The Islamic State of Iraq later claimed responsibility for the attacks.
April 1 - A tanker bomb exploded at the police headquarters in Tikrit, killing at least 42 people and injuring 67 others. Insurgents attacked an oil field near Akaz in a remote part of Al Anbar Governorate, killing 2 engineers and kidnapping a third one. Other attacks across the country left a prison warden in Mosul dead and 11 others injured, including the mayor of Tuz Khormato and at least four journalists, who were stabbed by unknown assailants in a series of attacks on media offices in the capital Baghdad.
April 6 - A suicide bomber killed 22 and injured 55 at a political rally for a local Sunni candidate in Baqubah. Other attacks across the country killed 7 and injured 9 others, most of them members of the security forces.
April 23–26 - On April 23, Iraqi Army units moved against an encampment set up by protesters in Hawija, west of the city of Kirkuk, sparking deadly clashes and reprisal attacks across the country. According to army officers, the operation was aimed at Sunni militants from the Naqshbandi Army, who were reportedly involved in the protests. A total of 42 people were killed and 153 others injured, with most of them being protesters - only 3 soldiers were confirmed dead and 7 others wounded. The incident sparked a number of revenge attacks, that soon spread out across much of the country. Minister of Education Mohammed Tamim resigned from his post in response to the Army's operation, and was followed later by Science and Technology Minister Abd al-Karim al-Samarrai. Insurgents from the Naqshbandi Army completely captured the town of Sulaiman Bek, about 170 km north of Baghdad, after heavy fighting with security forces on April 25, only to relinquish control of it a day later, while escaping with weapons and vehicles. More than 340 were killed and 600 others injured in the four days of heaviest violence, while attacks continued after that at a pace higher than earlier in the year. On May 3, the United Nations mission to Iraq released figures, showing that more people died in violent attacks in April than in any other month since June 2008. According to the numbers, at least 712 were killed during April, including 117 members of the security forces.
May 15–21 - In the latest round of violence, a series of deadly bombings and shootings struck the central and northern parts of Iraq, with a few incidents occurring in towns in the south and far west as well. The week of attacks killed at least 449 people and left 732 others injured in one of the deadliest outbreaks of violence in years.
September 21 - A series of car and suicide bombings struck a funeral in the predominantly Shi'ite neighborhood of Sadr City, in Iraq's capital Baghdad. The attacks left at least 78 dead and more than 200 others injured. A number of smaller incidents occurred in the country's north and central regions as well.
November 1 - Attacks and other violence across Iraq killed 979 people in October, the United Nations said Friday, a monthly death toll that is the same as the figure for September.U.N.'s report said 979 people were killed in October — the same number as in September. Out of those, 852 were civilians while 127 were Iraqi soldiers and members of the police force.Also, the U.N. said 1,902 Iraqis were wounded in attacks across the country last month — a drop of more than 200 from September, when 2,133 Iraqi were wounded.Baghdad was the worst affected province, with 411 killed and 925 wounded. It was followed by the volatile Ninevah province, where 188 people were killed and 294 were wounded.
December 1 - Health Minister of Iraq and the Defence Minister of Iraq said 948 people, including 852 civilians, 53 police officers and 43 soldiers, had been killed in violent attacks across the country in November.The figures make November one of the deadliest months in 2013, with civilians accountin.
December 3 - At least 948 people have been killed in violent attacks across Iraq in the month of November.
December 4 - Two people were killed and 70 others were wounded due to a clash between security forces and assailants who tried to capture the intelligence building in Iraq's Kirkuk Governorate.Meanwhile, a car bomb was detonated by security forces in front of the intelligence building.Five assailants tried to prevent the assistance provided to security forces and wounded four ambulance drivers.
December 8 - Car bombs killed at least 39 people across Iraq on Sunday and wounded more than 120, mainly targeting busy commercial streets in and around the capital, police sources said.
December 9 - The deadliest of Monday’s attacks took place outside a cafe in the town of Buhriz, about 60 kilometers (35 miles) north of the capital, Baghdad, killing 12 people and wounding 24, police said.Three more bombings around the country killed an additional six people.A roadside bomb targeted an army patrol just south of the capital, killing one Iraqi soldier and wounded two others, while in Baghdad’s eastern Basmaya district a bomb at an outdoor market killed three people and wounded seven, police said.In a village just north of Baghdad, three policemen were killed and 10 were wounded when a car bomb exploded near their checkpoint.And in the southwestern suburbs of Baghdad, a roadside bomb struck a car carrying anti-al-Qaida Sunni fighters, killing two and wounding three, police and hospital officials said.
December 10 - At least 18 people have been killed in two deadly attacks, including a bombing and a shooting, in Iraq's Diyala Governorate.The deadliest attack took place on Tuesday in Baquba where a bomb blast left eleven people dead.Reports say that the explosion also left 19 people injured.
Earlier this month, the country’s ministries of health and defense said that 948 people, including 852 civilians, 53 police officers and 43 soldiers, were killed in violent attacks across the Arab country in November.Another 1,349 people were also injured in the attacks.The figures make November one of the deadliest months in 2013, with civilians accounting for about 90 percent of the fatalities.
December 14 - At least 17 people, most of them Shi'ite Muslims, were killed in a series of bombings and shootings across Iraq on December 14 ahead of a major Shi'ite ritual, according to medical and police sources. Police and medics said the deadliest of the attacks occurred in Baghdad's mainly Shi'ite district of Bayaa when a car bomb blew up near a gathering of Shi'ite pilgrims, killing seven people and wounding another 16. Additionally, police also reported that three people were killed and ten wounded in a mainly Shi'ite district on the southeastern outskirts of Baghdad when a roadside bomb exploded in a vegetable market, while in the district of Husseiniya, a bomb left inside a restaurant killed two people and wounded another five.
December 15 - Police reported that seven people were killed, including five family members, in separate attacks in Iraq. A provincial police source also reported that earlier in the day, a government employee, his wife and three of their children were killed when bombs planted in in their house exploded in the city of Saadiyah, some 120 km northeast of the Iraqi capital of Baghdad. The provincial source also stated that, in a separate incident, a member of a government-backed Sahwa paramilitary group was shot dead at a village near the Diyala Governorate capital city of Baquba, some 65 km. northeast of Baghdad.
December 16 - According to police officers, militants detonated a car bomb at the city council headquarters in Iraq's Tikrit and then occupied the building. The officers said an unknown number of employees were still in the building at the time of the explosion in the city north of Baghdad, while the number of casualties remains unclear.Iraqi security forces surrounded the building and released 40 people who were held inside, according to Counter-Terrorism Service spokesman, Sabah Noori.Meanwhile, a police major and a doctor said a city council member as well as two police died in the incident.In clashes that erupted afterwards between the militants and Iraqi security forces, three policemen lost their lives while three militants were also killed.In a separate incident, gunmen killed three soldiers guarding an oil pipeline near Tikrit.In another deadly attack on Monday, militants gunned down 12 people on a bus in the city of Mosul in northern Iraq.Also on Monday, five car bombs and a magnetic “sticky bomb” on a vehicle went off in and around the Iraqi capital, leaving at least 17 people dead and over 40 injured.
December 17 - Iraqi security officials reported that militants killed at least eight Shiite pilgrims in Baghdad Governorate. A suicide bomber detonated explosives among pilgrims walking south of Baghdad, killing four, while militants in a car threw a hand grenade at pilgrims in the capital, killing at least four others. The two attacks also wounded at least 27 other people.
December 18 - A suicide bomber detonated an explosives belt among Shiite pilgrims walking northeast of the Iraqi capital, one of several attacks that killed a total of nine people Wednesday, officials said.The bomber struck in the Khales area, killing five people and wounding 10, a police colonel and a doctor said.The colonel said one of the dead was a policeman tasked with guarding the pilgrims, who embraced the bomber just before the attack in an effort to shield others from the blast.
December 19 - Three suicide bombers detonated explosives belts among Shiite pilgrims in Iraq on Thursday, killing at least 36 people, while militants shot dead a family of five, officials said.The deadliest attack hit the Dura area of south Baghdad, where a bomber targeted pilgrims at a tent where they are served food and drinks on their way to the shrine city of Karbala, killing at least 20 people and wounding at least 40.Among those killed in the blast was Muhanad Mohammed, a journalist who had worked for both foreign and Iraqi media, one of his sons told AFP.
December 20 - Two bombings in an Iraqi market and another in a cemetery as people buried victims of the first blasts killed 11 people on Friday, police and a doctor said.The first two attacks targeting a livestock market in Tuz Khurmatu, 175 kilometres (110 miles) north of Baghdad, killed eight people and wounded 25.As people gathered at a cemetery to bury the victims of the market blasts, another bomb went off, killing three people and wounding two.
December 21 - Officials say attacks in western Iraq and south of Baghdad have killed six people - four policemen and two Shiite pilgrims. Police officials say gunmen in a speeding car opened fire at a police checkpoint in the western city of Fallujah on Saturday morning, killing four policemen, while in the town of Latifiyah, 30 kilometers (20 miles) south of Baghdad, a mortar shell hit a group of Shiite pilgrims heading to the holy sites in the city of Karbala. Also, military sources said at least 15 Iraqi military officers were killed in an ambush on Saturday in western Iraq's Sunni Muslim-dominated Anbar Province. According to the sources, several top-ranking officers were among those killed in the attack.
December 23 - The Iraqi military attacked camps belonging to an Al-Qaeda-linked militant group in Anbar Province, destroying two, the defence ministry said on Monday.After locating camps with aircraft, Iraqi forces launched "successful strikes... resulting in the destruction of two camps in the desert of Anbar Province," spokesman Mohammed al-Askari said in an statement.The assaults came after five senior officers, including a divisional commander, and 10 soldiers were killed during an operation against militants in the mainly Sunni western Anbar Province.
December 25 - Three separate bombings in Baghdad, Iraq targeted Christians on Christmas, killing 38 people and wounding 70 others. At least 34 people were killed and 50 injured in three bombings in Christian areas of Baghdad on Wednesday, including a car bomb that exploded as worshippers were leaving a Christmas service, Iraqi police and medics said.Elsewhere in Iraq, at least 10 people were killed in three attacks that targeted police and Shi'ite pilgrims, police said.
December 28 - Twelve people were killed and 27 wounded in Iraq in violent attacks and an operation by security forces to arrest a Sunni lawmaker, police said.In an incident, up to five were killed and 17 wounded in a clash between Iraqi security forces and guards of Ahmad al-Alwani, a Sunni Arab member of parliament in Iraq's western Anbar Province .The incident occurred when a joint army and a Special Weapons And Tactics force, backed by helicopters, carried out a pre-dawn raid on the house of Alwani in the provincial capital city of Ramadi, some 110 km west of Baghdad.During the operation, the troops exchanged fire with Alwani's guards who resist the arrest and called the operation illegal since lawmakers enjoy immunity under the constitution.
"The clashes resulted in the killing of five people, including Alwani's brother and a soldier, and the wounding of 13 guards and four soldiers," the source said, adding that Alwani and a number of his guards were also arrested.
Later in the day, the Defence Minister of Iraq said in a statement that the troops went to Alwani's house with an arrest warrant against his brother, who was among the killed, and they arrested Ahmad al-Alwani despite his immunity.
December 29 - Attacks in Iraq mainly targeting members of the security forces killed at least 16 people on Sunday, among them three senior army officers, security and medical officials said.
Earlier on Sunday, a car bomb exploded near an army checkpoint in Mosul, killing four more soldiers, among them an officer, while a roadside bomb in the city killed a child and wounded three people.The attacks on the soldiers come after five senior officers, including a divisional commander, and 10 other soldiers were killed during a December 21 operation against militants in the westernAnbar province.In Abu Ghraib, west of Baghdad, gunmen killed at least four Sahwa militia anti-Al-Qaeda militiamen and wounded at least three at a checkpoint on Sunday.
January 2 - Al-Qaeda linked militants were in control of more than half of the Iraqi city of Fallujah and parts of Ramadi. "Half of Fallujah is in the hands of ISIL the Al-Qaeda linked ISIL group, and the other half is in the control of" armed tribesmen, an interior ministry official told. A witness in the city west of Baghdad said that militants had set up checkpoints each manned by six to seven people in central and south Fallujah. "In Ramadi, it is similar -- some areas are controlled by ISIL and other areas are controlled by" tribesmen, the interior ministry official said, referring to the Anbar Province capital, which lies farther to the west. An journalist in Ramadi saw dozens of trucks carrying heavily-armed men driving in the city's east, playing songs praising ISIL. Clashes broke out in the Ramadi area as security forces tore down the country's main Sunni Arab anti-government protest site, and continued for two more days. On Wednesday, militants in the city sporadically clashed with security forces and torched four police stations, but the clashes had subsided by Thursday, the Agence France-Presse journalist said. The violence also spread to Fallujah, where police abandoned most of their positions on Wednesday and militants burned some police stations.
January 3 - Al-Qaeda linked militants advanced into gained ground and took over several police stations in Fallujah. In early morning, ISIL fighters advanced into areas in central Ramadi and deployed snipers on one street. A police colonel said the army had re-entered into areas of Fallujah, between Ramadi and Baghdad, but that around a quarter of it remained under ISIL control. Soldiers and armed tribesmen held the rest and had also surrounded the city, he said.
However, another senior officer, a police lieutenant colonel, said that while soldiers had deployed around the city they had yet to enter Fallujah.
January 4 - the Iraqi government has lost control of the city of Fallujah, which is now held by ISIL militants, a senior security official in Anbar province said. Fallujah is under the control of ISIL. Earlier on Friday, more than 100 people were killed as Iraqi police and tribesmen battled Al-Qaeda linked militants who took over parts of two cities on Anbar province, declaring one an ISIL.
On the same day, the Iraq army shelled the western city of Falluja with mortar bombs overnight to try to wrest back control from Sunni Muslim militants and tribesmen, killing at least eight people. Falluja has been held since by militants linked to al Qaeda and by tribal fighters united in their opposition to Prime Minister Nuri al-Maliki, in a serious challenge to the authority of his Shi'ite-led government in Anbar province. Medical sources in Falluja said another 30 people were wounded in shelling by the army.
January 5 - officials report a new wave of bombings in Baghdad that killed at least 20 people—responsibility was attributed to militants who have been fighting Iraqi security forces and allied tribes in the country's west.
January 7 - Iraqi missile strikes on Ramadi killed 25 militants. Also in same day, unidentified gunmen have killed seven police officers, including a captain, in an attack at a security checkpoint north of the Iraqi capital Baghdad. The deadly incident took place on a highway north of the city of Samarra.
No group has claimed responsibility for the attack, but police officials say the main suspects are militants linked to al-Qaeda.
January 8 - Gunmen attacked a military site north of the Iraqi capital, killing 12 soldiers and wounding four. The militants stormed a building at the site in the Al-Adhim area, then bombed it. Militants opposed to the Iraqi government frequently target members of the security forces with bombings and shootings.
January 9 - a suicide bomber killed 23 Iraqi army recruits and wounded 36 in Baghdad on Thursday, officials said, in an attack on men volunteering to join the government's struggle to crush al Qaeda linked militants in Anbar province. Brigadier General Saad Maan, spokesman for the Baghdad Security Operations Centre, said the bomber blew himself up among the recruits at the small Muthenna Airbase, used by the army in the capital. Maan put the death toll at 22 but health ministry officials said morgue records showed 23 had died.
No group immediately claimed responsibility for the attack, which occurred a day after Prime Minister Nuri al-Maliki said he would eradicate the "evil" of al Qaeda and its allies.
January 12 - outside bus station in central Baghdad exploded car bomb killed at least nine people and wounding 16. No group immediately has claimed responsibility for attack on bus terminal Alawi al-Hilla. Also on Sunday, bombing targeting a general in northern Iraq outside his home in eastern Sulaimaniyah, damaged his vehicle but left him unharmed.
January 13 - four car bombs killed at least 25 people in Shi'ite Muslim districts of Baghdad, in violence that coincided with a visit to the Iraqi capital by U.N. Secretary-GeneralBan Ki-moon. Although no group claimed responsibility, the bombings appeared to be part of a relentless campaign by al Qaeda linked Sunni Muslim militants to undermine Prime Minister Nuri al-Maliki's Shi'ite-led government.
January 14 - bombings and shootings killed at least eight people in and around the Iraqi capital, including a judge. Gunmen in a speeding car opened fire at the judge, killing him and his driver. Later in the afternoon a sticky bomb attached to a mini-bus exploded in the Shiite neighborhood of Sadr city, killing three passengers and wounding eight.
January 15 - bomb attacks and shootings killed at least 75 people in Iraq, police and hospital sources said, making it one of the bloodiest days in months, but troops reclaimed a town west of Baghdad.
January 16 - the bodies of 14 Sunni Muslim tribesmen were found in date palm groves north of Baghdad, a day after they were kidnapped by uniformed men in security forces vehicles. The victims, all from the Albu Rawdas tribe, had been abducted while they were attending a funeral in the town of Tarmiya, 25 km (16 miles) north of the Iraqi capital.
January 18 - five bombings in Baghdad, including an attack on a glitzy new shopping mall in the west of the capital, killed 14 people and wounded several others. The blasts struck in the neighbourhoods of Mansur, Nahda, Taubchi, Sarafiyah and Amriyah—all across the capital.
January 20 - seven bomb explosions killed 26 people and wounded 67 in the Iraqi capital, as security forces battled Sunni Muslim militants around the western cities of Falluja and Ramadi.
No group claimed responsibility for the blasts. On same day, a senior Iraqi official claims ISIS fighters hunkered down in a city they seized late last month west of Baghdad have enough heavy weapons to allegedly take the country's capital.
January 23, two soldiers and three would-be suicide bombers were killed and 18 other soldiers wounded in separate violent attacks in eastern and central Iraq. On the same day, security forces thwarted coordinated predawn attacks by ISIL militants in eastern Diyala province when the troops came under arms fire near the provincial capital city of Baquba, some 65 km northeast of Baghdad, prompting a fierce clash with the attackers, killing three of them and seized three of their explosive vests.
January 24, in Anbar ProvinceIraqi armed forces have managed to kill scores of ISIS militants as the army continues its fight against terrorists. According to Iraqi Defense Ministry, the air forces carried airstrikes to bases Takfiri militants in western Anbar province and killing scores militants.
January 25, three mortar shells landed in the village mainly populated by Shia Muslims near the Iraqi city of Baquba has killed six people. On the same day, double bombing has killed a soldier and his entire family in their home in town Muqdadiyah in 90 kilometers (60 miles) north of Baghdad.
January 27, at least four people were killed and 14 wounded in the afternoon when almost simultaneously three car bombs detonated in northern Iraq, in city Kirkuk, some 250 km north of Baghdad. On the same day, head of a city council and two of councillors were killed by gunmen who attacked their convoy near the town of Wajihiyah in eastern Diyala province also in al-Rashdiyah northern suburb Baghdad, gunmen killed an ex-officer of Saddam Hussein's army and his wife.
January 28, seven members of Iraq's security forces killed on during an armed attack north of Baghdad, the latest in a surge in violence fuelling fears the country is slipping back into all-out conflict.
January 29, at least 13 people were killed and 39 others wounded in violent attacks in the Iraqi capital of Baghdad. According to UNAMI in Iraq in 2013 were killed a total of 8,868 Iraqis, including 7,818 civilians and civilian police personnel.
January 30, security officials said, militants stormed an office of Ministry of Human Rights (Iraq) in northeast Baghdad and took a number of civil servants hostage. The attack was mounted by eight armed men. Later, security forces kill to all attackers and free hostages.
February 1, last month in consequence terrorist attacks and other violence across Iraq have died as total of 1,013 people including 795 civilians, 122 soldiers and 96 policemen.
February 4, least 20 people were killed and 68 others wounded in violent attacks in and around the Iraqi capital of Baghdad. Thr deadliest attack occurred in the area of Abu Dusher in southern Baghdad when two car bombs exploded, leaving four people killed and 16 others wounded.
February 5, at least 16 people have been killed in a spate of bombings in the Iraqi capital, Baghdad. On the same day, Iraqi officials said up to 32 people has increased the number of deaths as a consequence of two more attacks in crowded places in Baghdad. 
February 6, the Iraqi officials said, that at least nine people killing and 22 civilians were wounded in string of car bombings has hit commercial areas in the eastern neighborhood of Jamila and northern neighborhood of Kazimiyah in Baghdad.
February 7, the during attacks in Baghdad and north of the capital killed nine people including a supporter of powerful Shiite cleric Moqtada al-Sadr who was standing in parliamentary elections to be held in April. On the same day, another five were also killed and dozens more were injured in Tuz Khormato, east of Tikrit in Saladin Province.
February 9, at least 19 people were killed and 19 wounded in violent attacks across Iraq. Violent attacks occurred at a marketplace in the Shiite district of Sadr City in the eastern part of the Iraqi capital of Baghdad as well as in the town of Mahmoudiyah, some 30 km south of Baghdad and in al-Gatoon district in southwestern part city of Baquba capital of the Diyala province.
February 10, at least 22 insurgents including a suicide bomber were killed, and 15 injured, when a car bomb mistakenly went off in a militant compound north of Baghdad.
February 11, 15 soldiers killed in pre-dawn assault on an army camp guarding an oil pipeline near Hamam al-Alil in the northern of Nineveh Province, one of the most violent parts of the Iraq.
February 12, at least 17 civilians including soldiers were killed across Iraq from explosions car bombs and roadside explosives.
Buut no one of groups claimed responsibility for these attacks.
February 13, Talib Hameed Mustafa mayor of the city Sulaiman Bek reported that gunmen seized of the Sunni town Sulaiman Bek some 90 km to east of the city Tikrit the capital Salah ad Din province after clashes with security forces.
February 14, Talib Mohammed mayor of the city Sulaiman Bek said, that Iraqi troops backed by helicopter gunships regained ground in the northern town of Sulaiman Bek, a day after parts of it were overrun by ISIS militants. At least 12 ISIS militants were killed by the army.
February 15, seventeen soldiers and policemen were killed and 12 others wounded in separate attacks targeting the security forces across Iraq.
February 18, at least 13 people were killed and 65 injured in consequence of the explosion of seven car bombs in central Iraq.
February 19, sixteen people were killed and 32 others wounded in separate violent attacks, mainly targeting Iraqi security forces across the country.
February 20, at least 20 people were killed and 35 wounded in Iraq when three mortar rounds struck a crowded market in a mainly Shi'ite Muslim town of Mussayab, 60 km south of the Baghdad.
February 26, twenty-one people were killed and 26 others wounded in violent attacks across Iraq.
February 27, at least 42 people were killed as a motorcycle rigged with explosives detonated in Baghdad's Sadr City and militants targeted mostly Shi'ite neighbourhoods around the country.
March 1, the UNAMI says a total of 703 people were killed in Iraq in February. The figure excluded deaths from the ongoing fighting between the Iraqi forces and ISIS militants in the western Anbar Province. Some 564 civilians and 139 members of security forces were killed in the violence in the country, while 1,381 people, including 1,179 civilians, were injured.
March 5, up to 26 people were killed and 87 others wounded in violent attacks across Iraq , including a series of car bombs in Baghdad.
March 6, at least 37 civilians killing in the series of bombings on commercial areas in central Iraq.
March 9, at least 50 people killed and more than 150 wounded of the suicide bombing at a crowded checkpoint south of the city Baghdad.
An independent UK/US group, the Iraq Body Count (IBC) project compiles reported Iraqi civilian deaths from violence during the Iraq War, including those caused directly by coalition military action, the Iraqi insurgency, and those resulting from excess crime. The IBC maintains that the occupying authority has a responsibility to try and prevent these deaths under international law. It shows a total range of at least 112,804 to 123,437 civilian deaths in the whole conflict as of April 19, 2013.
Following are the yearly IBC Project civilian death totals, broken down by month from the beginning of 2003 until the US pullout in December 2011. The numbers were last updated on May 31, 2013:
Yearly casualty tolls in Iraq according to the IBC database
Monthly Iraqi casualties counted by the IBC Project, 2003–2011
Following are the monthly IBC Project civilian death totals, from the US pullout in December 2011 onwards.
2012 Iraqi deaths by province, per 100,000 people
Monthly Iraqi casualties counted by the IBC Project from December 2011
The numbers include civilians, as well as members of the Iraqi Army and police forces. The IBC does a constant check on all its reports, and publishes weekly updates to its monthly casualty table. Consequently, the figures for the last few months in the table above should always be considered preliminary and will be marked in italic until confirmed by IBC.
Month by month casualty tolls after the U.S. withdrawal (IBC database)
The Iraqi government releases its own figures, usually on the first day of each month. These are almost always significantly lower than other estimates and often even contradict with news reports, leading to an apparent "under-reporting" of casualty figures. Most news outlets still report on these, although JustPolicy.org  has a running estimate based on the Lancet study  with the rate of increase derived from the Iraq Body Count.
Iraqi casualties counted by the Iraqi government
The Iraqi government also compiles the number of wounded from these three categories, as well as the number of killed and captured insurgents. From the beginning of December 2011 until the end of January 2014, at least 16,580 Iraqis have been injured according to these reports, including 2,439 police officers and 1,997 members of the Iraqi Army. During the same period, 1,108 insurgents were killed, while a total of 3,962 suspects were arrested.
Iraq soldier standing guard in Baghdad, 26 December 2011
This section includes both AFP and Iraqi government estimates, and as such, is intended as an addition to the tables above.
Several dozen were killed within the first few days after U.S. withdrawal on December 18, 2011. At least 337 casualties were inflicted by the wave of violence during December 20–26. About 200 died in January, with Al-Arabiya channel claiming mortal casualties to be at least 151 people. The Iraqi Body Count (IBC) claimed 451 casualties in January, including injuries. In February, the death toll across Iraq reached 278 according to IBC. 74 people were killed between March 1–8 according to IBC, and a total of 112 were killed in Iraq in March, according to government figures. At least 126 Iraqis were killed in April, while 132 Iraqis were killed in sectarian violence in Iraq in May 2012. June marked a significant spike in violence, with a major attack occurring on average every three days. At least 237 were killed during the month, with an additional 603 people left injured.
July 2012 was the deadliest month in Iraq since August 2010, with 325 deaths; 241 civilians, 40 police, and 44 soldiers. The month also saw 697 people being wounded by violence; 480 civilians, 122 police, and 95 soldiers. The rise in violence was linked to Sunni insurgents trying to undermine the Shia led government. According to government figures, at least 164 Iraqis were killed during August 2012 – 90 civilians, 39 soldiers and 35 policemen, with 260 others injured. September was a particularly bloody month, with government reports citing at least 365 deaths (182 civilians, 95 soldiers and 88 policemen) and 683 injuries (453 civilians, 120 soldiers and 110 police). Government casualty tolls released for the month of October showed a total of 144 people were killed (88 civilians, 31 policemen and 25 soldiers), and another 264 were wounded, including 110 civilians, 92 policemen and 62 soldiers. At least 166 people were killed throughout Iraq in November 2012 according to government casualty tolls, and 208 died in December, including 55 policemen and 28 soldiers. During January 2013, at least 246 people were killed nationwide (including 30 policemen and 18 soldiers), while 735 others were injured. Government figures remained low in February 2013, with a total of 136 killed (88 civilians, 22 soldiers and 26 policemen) and 228 injured. There was a slight increase in March, when according to government sources 163 were killed and 256 injured nationwide, though officials in Baghdad stressed that these numbers did not include the Kurdish regions.
According to figures released by the UN Assistance Mission for Iraq (UNAMI), April 2013 was the deadliest month in Iraq in over five years, with a total of 712 people were killed and 1,633 were wounded in acts of terrorism and violence. Conditions continued to deteriorate in May when UNAMI reported a total of 1,045 Iraqis were killed and another 2,397 wounded in acts of terrorism and acts of violence, making it one of the deadliest months on record. The figures include 963 civilians and 181 civilian police killed, while 2,191 civilians and 359 civilian police were wounded. An additional 82 members of the Iraqi Security Forces were killed and 206 were injured.
The United Nations keeps its own statistics on casualties, and according to their reports, through the end of June, 2,101 Iraqis were killed in violent attacks in 2012, compared with 1,832 in the first half of 2011.