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Islamic State of Iraq and the Levant

The Islamic State of Iraq and the Levant (ISIL) is a Salafi jihadist militant group that emerged from al-Qaeda in Iraq and expanded during the Syrian civil war and the Iraq conflict.

By Ethan Anderson| Reviewed by Olivia Bennett, Standards & Fact-Checking Lead| Updated July 26, 2026|2 min read| Fact-checked

The Islamic State of Iraq and the Levant (ISIL) is a Salafi jihadist militant group that emerged from al-Qaeda in Iraq and expanded during the Syrian civil war and the Iraq conflict. It has also been known as ISIS, the Islamic State, and Daesh. The group has been designated a terrorist organisation by the United Nations and by multiple governments.

Origins

ISIL originated from al-Qaeda in Iraq, which was established in 2004 under Abu Mus'ab al-Zarqawi. It later became the Islamic State of Iraq and then expanded into Syria, adopting the ISIL name in 2013.

Ideology and goals

The group follows a Salafi jihadist ideology and claims legitimacy for a caliphate ruled by its interpretation of sharia. Its stated objective is to solidify and expand territorial control.

Territorial expansion

ISIL took advantage of instability in Iraq and Syria to seize and hold territory, becoming internationally prominent in 2014. It later lost most of its territorial holdings, though it remained an insurgent and transnational security threat.

Designations and naming

The organisation is known by multiple names, including ISIS, IS, and Daesh, reflecting differences in translation and political usage. It has been designated as a terrorist organisation by the United Nations and several national governments.

Key facts

  • ISIL grew out of al-Qaeda in Iraq and was later known as the Islamic State of Iraq before adopting the ISIL name in 2013.
  • The group sought to establish and expand a caliphate governed by its strict interpretation of sharia.
  • It exploited the Syrian conflict and sectarian tensions in Iraq to entrench itself in both countries.
  • In June 2014, the group declared a caliphate and demanded allegiance to its leader, Abu Bakr al-Baghdadi.
  • The group has been designated a terrorist organisation by the UN and many states.
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Canadian context

Canadian readers may know ISIL through Canada’s participation in international counter-ISIS efforts and through domestic security and foreign policy reporting on the group’s attacks, propaganda, and regional instability.

Frequently asked questions

What does ISIL stand for?
ISIL stands for Islamic State of Iraq and the Levant.
Is ISIL the same as ISIS?
Yes. ISIL, ISIS, IS, and Daesh are all widely used names for the same group.
When was ISIL formed?
It is commonly dated to April 2004, when Abu Mus'ab al-Zarqawi established the group that later evolved into ISIL.
What was ISIL’s goal?
Its stated goal was to establish and expand a caliphate governed by its strict interpretation of sharia.
Was ISIL considered a terrorist organisation?
Yes. It was designated a terrorist organisation by the United Nations and by multiple countries.
Who led ISIL?
Public reporting in the sources identifies Abu Bakr al-Baghdadi as the leader during its rise.

References

  1. U.S. National Counterterrorism Center / Office of the Director of National Intelligencehttps://www.dni.gov/nctc/groups/isil.html
    Supports: Origins, aliases, ideology, and designation details
  2. European Union Agency for Asylumhttps://www.euaa.europa.eu/country-guidance-iraq-2024/24-islamic-state-iraq-and-levant-isil
    Supports: Description as a Salafi jihadist militant group and goal of establishing a caliphate
  3. Encyclopaedia Britannicahttps://www.britannica.com/topic/Islamic-State-in-Iraq-and-the-Levant
    Supports: Origins from al-Qaeda in Iraq, territorial expansion, and major attacks
  4. BBC Newshttps://www.bbc.com/news/world-middle-east-29052144
    Supports: 2013 name change, 2014 caliphate declaration, and leadership under Abu Bakr al-Baghdadi
  5. BBC Newshttps://www.bbc.com/news/world-middle-east-47210891
    Supports: Territorial peak, decline, and continued insurgent threat
  6. Encyclopaedia Britannicahttps://www.britannica.com/facts/Islamic-State-in-Iraq-and-the-Levant
    Supports: Alternate names and date range