ISIS Fast Facts
CNN Editorial Research
Here’s a look at Islamic State in Iraq and Syria (ISIS).
Facts
Started as an al Qaeda splinter group.
Also known as Islamic State in Iraq and the Levant (ISIL) and Islamic State (IS).
ISIS aims to create an Islamic state called a caliphate across Iraq, Syria and beyond.
The group implements Sharia Law, rooted in eighth-century Islam, to establish a society that mirrors the region’s ancient past.
ISIS uses modern tools like social media to promote reactionary politics and religious fundamentalism. Fighters destroy holy sites and valuable antiquities as their leaders propagate a return to the early days of Islam.
ISIS’s revenue comes from oil production and smuggling, taxes, ransoms from kidnappings, selling stolen artifacts, extortion and controlling crops.
Leader
Since November 30, 2022, the leader of ISIS has been Abu al-Husain al-Husaini al-Quraishi, the group announced. Abu al-Hasan al-Hashmi al-Qurayshi was the leader from March 2022 until his death in mid-October.
Timeline
2004 – Abu Musab al-Zarqawi establishes al Qaeda in Iraq (AQI).
2006 – Under Zarqawi, al Qaeda in Iraq tries to spark a sectarian war against the majority Shia community.
June 7, 2006 – Zarqawi is killed in a US strike. Abu Ayyub al-Masri takes his place as leader of AQI.
October 2006 – Masri announces the creation of Islamic State of Iraq (ISI), and establishes Abu Omar al-Baghdadi as its leader.
April 2010 – Abu Bakr al-Baghdadi becomes leader of ISI after Abu Omar al-Baghdadi and Masri are killed in a joint US-Iraqi operation.
April 2013 – ISI declares its absorption of an al Qaeda-backed militant group in Syria, Jabhat al-Nusra, also known as the al-Nusra Front. Baghdadi says that his group will now be known as Islamic State in Iraq and the Levant (ISIL or ISIS).
January 2014 – ISIS takes control of Falluja.
February 3, 2014 – Al Qaeda renounces ties to ISIS after months of infighting between al-Nusra Front and ISIS.
May 2014 – ISIS kidnaps more than 140 Kurdish schoolboys in Syria, forcing them to take lessons in radical Islamic theology, according to London-based monitoring group Syrian Observatory for Human Rights.
June 9-11, 2014 – ISIS takes control of Mosul and Tikrit.
June 21, 2014 – ISIS takes control of Al-Qaim, a town on the border with Syria, as well as three other Iraqi towns.
June 28, 2014 – Iraqi Kurdistan restricts border crossings into the region for refugees.
June 29, 2014 – ISIS announces the creation of a caliphate (Islamic state) that erases all state borders, making Baghdadi the self-declared authority over the world’s estimated 1.5 billion Muslims. The group also announces a name change to the Islamic State (IS).
June 30, 2014 – The Pentagon announces the United States is sending an additional 300 troops to Iraq, bringing the total US forces in Iraq to nearly 800. Troops and military advisers are sent to Iraq to support Iraqi security forces and help protect the US Embassy and the airport in Baghdad.
July 2014 – ISIS takes control of Syria’s largest oilfield and seizes a gas field in the Homs Province, storming the facility and killing dozens of workers. Militants conquer a 90-mile stretch of Syrian towns, from Deir Ezzor to the Iraq border. In Mosul, they blow up Jonah’s tomb, a holy site dating back to the 8th century BC.
August 6, 2014 – ISIS fighters attack the northern Iraqi town of Sinjar, home of a religious minority group called the Yazidis. More than 30,000 Yazidi families are stranded in the Sinjar Mountains. A Yazidi lawmaker says that 500 men have been killed, 70 children have died of thirst and women are being sold into slavery.
August 8, 2014 – Two US jet fighters bomb ISIS artillery units in Iraq. US President Barack Obama authorizes “targeted airstrikes” if needed to protect US personnel and prevent potential genocide of minority groups.
August 19, 2014 – ISIS posts a video showing the beheading of US journalist James Foley, missing in Syria since 2012.
September 2, 2014 – ISIS releases a video showing the beheading of US journalist Steven Sotloff. The apparent executioner speaks in the same British accent as the man who purportedly killed Foley.
September 11, 2014 – The CIA announces that the number of ISIS fighters may be more than three times the previous estimates.
September 13, 2014 – ISIS posts a video showing the apparent execution of British aid worker David Haines.
September 23, 2014 – The United States carries out airstrikes against ISIS.
October 3, 2014 – ISIS releases a video showing the apparent beheading of British hostage, Alan Henning.
November 3, 2014 – The Iraqi government announces ISIS militants have killed 322 members of a Sunni tribe in a series of executions.
November 14, 2014 – The UN Independent International Commission of Inquiry on Syria concludes that ISIS has committed war crimes and crimes against humanity.
November 16, 2014 – ISIS posts a video that appears to show a dead American hostage, Peter Kassig.
January 22, 2015 – US diplomatic officials say that coalition airstrikes have killed an estimated 6,000 ISIS fighters.
January 24, 2015 – A photo and audio released by ISIS appear to show the beheaded body of Japanese hostage, Haruna Yukawa.
January 31, 2015 – ISIS releases a video that appears to show the decapitated body of a second Japanese hostage, Kenji Goto.
February 3, 2015 – Video and still images posted by ISIS apparently show Jordanian pilot Moath al-Kasasbeh being burned alive while locked in a cage.
February 5, 2015 – Jordanian fighter jets carry out airstrikes over Syria, reportedly hitting ISIS training centers as well as arms and ammunition depots in Raqqa. The next day, ISIS claims that the airstrikes killed American hostage Kayla Jean Mueller. ISIS posts a picture of a collapsed building and the terror group claims Mueller is buried in the rubble.
February 10, 2015 – Mueller’s family announces she is dead, after receiving confirmation from ISIS, including a photo of her wrapped in a burial shroud.
February 11, 2015 – Obama asks the US Congress to formally authorize use of military force against ISIS.
February 15, 2015 – ISIS posts a video in which militants appear to behead more than a dozen Egyptian Christians on a Libyan beach. The next day, Egyptian warplanes strike ISIS targets in Libya.
February 22, 2015 – ISIS releases a video that appears to show at least 21 Kurdish Peshmerga fighters in cages carried down Iraqi streets.
February 26, 2015 – Jihadi John, the disguised man with a British accent who appeared in ISIS videos as the executioner of Western hostages, is identified as Mohammed Emwazi, a Kuwaiti-born Londoner. On the same day, ISIS releases a video of its fighters destroying antiquities at the Mosul Museum.
March 2015 – ISIS posts images of a man being thrown off a building in Raqqa, Syria. He had been accused of being gay. There are at least a half dozen documented cases of ISIS killing men accused of being gay.
March 1, 2015 – ISIS releases 19 Christian prisoners. All but one are reportedly from a group of 220 Assyrians captured in northern Syria.
March 7, 2015 – In an audio message purportedly from Boko Haram leader Abubakar Shekau, the Nigeria-based radical Islamic group pledges allegiance to ISIS. Days later, an ISIS spokesman claims the caliphate has expanded to western Africa.
March 12, 2015 – Iraqi forces retake most of Tikrit. In western Iraq, ISIS blows up the Iraqi army headquarters north of Ramadi, killing at least 40 Iraqi soldiers.
April 1, 2015 – Iraqi forces, aided by Shiite militiamen, take full control of Tikrit.
April 8, 2015 – According to Iraqi Kurdistan officials, ISIS releases more than 200 Yazidi women and children, as well as the ill or elderly.
April 19, 2015 – ISIS releases a video that appears to show militants beheading two groups of prisoners in Libya. The Ethiopian government confirms that 30 of the victims were Ethiopian citizens.
May 16, 2015 – A key ISIS leader is killed during a US Special Operations raid in Syria, according to US officials. His wife is captured and the raid yields significant intelligence on ISIS’s structure and communications.
May 17, 2015 – ISIS seizes control of Ramadi, the largest city in western Iraq, after government security forces pull out of a military base.
May 21, 2015 – ISIS takes control of Palmyra, an ancient Syrian city that is a UNESCO World Heritage Site. According to the Syrian Observatory for Human Rights, it was the last Syria-Iraq border crossing under control of Syrian troops.
June 19, 2015 – The US State Department issues its annual terrorism report, declaring that ISIS is becoming a greater threat than al Qaeda. The frequency and savagery of ISIS attacks are alarming, according to the report.
June 24, 2015 – The Syrian government reports that ISIS militants have destroyed two Muslim holy sites in Palmyra. The group attacked a 500-year-old shrine and a tomb where a descendent of the Prophet Mohammed’s cousin was reportedly buried.
June 26, 2015 – A gunman kills at least 38 people at a beachfront Tunisian hotel and a bomb kills at least 27 people at a mosque in Kuwait. ISIS claims responsibility for the attacks.
July 1, 2015 – ISIS launches simultaneous attacks on five Egyptian military checkpoints, reportedly killing 17 Egyptian soldiers and injuring 30 others. According to the Egyptian military, 100 terrorists are killed in the fighting.
July 4, 2015 – The Syrian Observatory for Human Rights reports it has received a video showing ISIS militants executing 25 captives in Palmyra.
July 17, 2015 – As Iraqis in Khan Bani Saad celebrate Eid al-Fitr, a holiday marking the end of the fast for Ramadan, ISIS detonates an ice truck bomb in a crowded marketplace, killing at least 120 people and wounding at least 140 more.
August 2015 – ISIS destroys the nearly 2,000-year-old Baalshamin temple in Palmyra. UNESCO, the UN’s cultural organization, calls the destruction of the temple a “war crime.”
October 30, 2015 – The Obama administration announces that it is deploying US Special Operations forces to join the fight against ISIS in northern Syria. Fewer than 50 troops are going to Syria, according to the White House. Over the next 14 months, an additional 450 American troops are sent to Syria to help train the local groups battling ISIS.
November 12, 2015 – The Pentagon announces that it has conducted a remote control drone strike targeting Emwazi, also known as “Jihadi John.” ISIS later confirms the death of Emwazi.
November 12, 2015 – Two suicide bombs hit the Bourj al-Barajneh district of southern Beirut, killing more than 40 people and wounding hundreds. ISIS claims responsibility for the attack.
November 13, 2015 – Kurdish forces liberate the Iraqi town of Sinjar from ISIS after two days of fighting. The Kurds were backed by coalition air power.
November 13, 2015 – Three teams of gun-wielding ISIS suicide bombers hit six locations around Paris, killing at least 130 people and wounding 494 others.
December 10, 2015 – A spokesman for the US-led coalition confirms that ISIS Finance Minister Abu Saleh was killed in an airstrike in late November in Iraq.
December 28, 2015 – Iraqi troops retake the city of Ramadi from ISIS according to an Iraqi military spokesman.
January 24, 2016 – ISIS releases a video that purports to show final messages from the Paris attackers.
February 21, 2016 – Multiple attacks in Homs and southern Damascus kill at least 122 and injure scores, according to Syria’s state-run SANA news agency. ISIS claims responsibility.
March 22, 2016 – Attacks on the airport and a subway station in Brussels, Belgium, kill more than 30 people and wound about 270 more. ISIS claims its “fighters” launched the attacks.
March 25, 2016 – The Pentagon confirms that US forces have killed ISIS’ finance minister, Abd al-Rahman Mustafa al-Qaduli.
June 26, 2016 – A senior Iraqi general announces on state TV that the battle for Falluja is over, as Iraqi troops retake the final ISIS holdout in the city.
June 28, 2016 – At least 44 people die and more than 230 are injured when three attackers arrive at Turkey’s Istanbul Ataturk Airport in a taxi, then open fire before blowing themselves up. US officials believe the man who directed the three attackers is Akhmed Chatayev, a terrorist from Russia’s North Caucasus region and a well-known ISIS lieutenant.
July 1-2, 2016 – Attackers invade the Holey Artisan Bakery cafe in a diplomatic enclave of Dhaka, the capital of Bangladesh. Gunmen kill 20 hostages and two police officers before authorities raid the restaurant and end the nearly 11-hour standoff. ISIS claims responsibility for the attack, but Bangladeshi officials say the attack was carried out by homegrown militants. US officials focus on ISIS as the perpetrator after photos purportedly showing the inside of the cafe and dead hostages are posted on an ISIS-affiliated website.
July 3, 2016 – A suicide car bomb detonates in a busy shopping district in Baghdad, killing at least 292 people and injuring another 200. It is the deadliest single attack in Iraq since 2003. ISIS claims responsibility.
August 30, 2016 – According to a statement from the terror group and its Amaq news agency, ISIS spokesman Abu Muhammad al-Adnani has been killed in the area of Aleppo, Syria. Without confirming Adnani’s death, the Pentagon confirms that coalition forces conducted an airstrike in al Bab, Syria, targeting him.
September 16, 2016 – Pentagon Press Secretary Peter Cook says a US air strike targeted and killed Wael Adel Salman, aka Abu Muhammad al-Furqan, ISIS’s chief spokesman. Salman was the ISIS minister of information, responsible for overseeing the production of “terrorist propaganda videos showing torture and executions,” Cook says.
October 17, 2016 – Iraqi Prime Minister Haider al-Abadi makes a televised statement announcing the start of the mission to retake the key city of Mosul, the last remaining ISIS stronghold in Iraq.
October 24, 2016 – Suicide bombers attack sleeping cadets at a police training academy in Pakistan, killing 61 and injuring 117. ISIS claims responsibility, releasing a photo of the three purported attackers, but Pakistani military leaders say they believe a Pakistan-based group, Lashkar-e-Jhangvi carried out the attack.
April 9, 2017 – ISIS claims responsibility for two deadly bombings targeting Coptic Christian churches on Palm Sunday in Egypt. At least 49 people are killed and 119 others are injured in the blasts.
April 13, 2017 – The US military drops its most powerful non-nuclear bomb on an ISIS compound in Afghanistan. An Afghan official later tells CNN that 94 militants were killed in the blast.
May 26-28, 2017 – More than 200 civilians are killed by ISIS militants in Mosul, according to the UN.
May 26, 2017 – Buses carrying Coptic Christians in Egypt are attacked by assailants, who fatally shoot at least 29. ISIS claims responsibility.
July 10, 2017 – Mosul is liberated from ISIS.
October 17, 2017 – ISIS loses control of its self-declared capital, the Syrian city of Raqqa. US-backed forces fighting in Raqqa say “major military operations” have ended, though there are still pockets of resistance in the city.
December 6, 2017 – The Pentagon announces that there are 5,200 American troops in Iraq and 2,000 troops in Syria. Troop levels are trending down, according to the Pentagon, as Iraqi forces and the Syrian Democratic Forces have liberated about 97% of the territory and people in the caliphate declared by ISIS.
December 9, 2017 – The Iraqi military says it has “fully liberated” all of Iraq’s territory of “ISIS terrorist gangs” and retaken full control of the Iraqi-Syrian border. The campaign to defeat ISIS in Iraq took more than three years and about 25,000 coalition airstrikes.
July 25, 2018 – At least 166 people are killed in a suicide bombing and other attacks in the southern Syrian province of Suwayda, the UN Office for the Coordination of Humanitarian Affairs in Syria says. ISIS claims responsibility.
August 23, 2018 – ISIS releases what it says is an audio message from Baghdadi. In the 55-minute recording, a man admits that ISIS groups are losing and urges his followers to carry on with the fight.
December 19, 2018 – US President Donald Trump sets the stage for a rapid withdrawal of American troops from Syria with a tweet falsely claiming that ISIS has been defeated. Although coalition forces have been successful taking back territory that was once part of the ISIS caliphate, militants continue to control a small swath of land near the Euphrates River. Estimates vary as to how many ISIS fighters are left in Syria. A Defense Department inspector general report puts the number of ISIS members in Iraq and Syria as high as 30,000.
January 16, 2019 – A deadly explosion kills four Americans and at least 10 other people in the Syrian city of Manbij. ISIS claims responsibility for the attack.
March 23, 2019 – The Syrian Democratic Forces announces that ISIS has lost its final stronghold in Syria, bringing an end to the so-called caliphate declared in 2014.
April 2019 – For the first time in five years, ISIS releases what it says is a new video message from Baghdadi.
August 6, 2019 – The Pentagon issues a report saying that ISIS is “resurging” in Syria. An accompanying message to the report, written by Glenn Fine, the principal deputy inspector general, notes that, “The reduction of US forces has decreased the support available for Syrian partner forces at a time when their forces need more training and equipping to respond to the ISIS resurgence.”
October 31, 2019 – ISIS releases an audio message confirming the death of Baghdadi and announcing its new leader is Abu Ibrahim al-Hashimi al-Qurayshi.
January 5, 2020 – The US led military coalition fighting ISIS announces that it’s temporarily stopping its counter ISIS missions in order to focus on protecting Iraqi bases and coalition forces from Iranian backed militias.
July 21, 2020 – The US military conduct an airstrike in Somalia targeting ISIS fighters. The fighters had attacked US backed local forces that were being advised by US troops.
February 2, 2022 – US Special Forces kill ISIS leader Qurayshi in a counterterrorism mission in northwest Syria.
July 12, 2022 – The US military kills Maher al-Agal, the leader of ISIS in Syria, in a drone strike in northwest Syria.
October 6, 2022 – US forces kill Abu ‘Ala, the deputy leader of ISIS in Syria, as well as Abu Mu’Ad al-Qahtani, an ISIS official responsible for prisoner affairs. The airstrike takes place one day after a US raid kills an ISIS smuggler.
November 30, 2022 – ISIS releases an audio message confirming the death of Abu al-Hasan al-Hashmi al-Qurayshi and announcing its new leader is Quraishi.
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