ISIS
A jihadist militant group that controlled large parts of Iraq and Syria from 2014, known for extreme violence and terrorism.
Updated April 23, 2026
Origins and Rise of ISIS
ISIS, also known as the Islamic State, emerged from the chaos following the 2003 US invasion of Iraq and the Syrian civil war beginning in 2011. It originated as an offshoot of al-Qaeda in Iraq but eventually broke away to form its own entity. By exploiting sectarian divisions and weak governance in Iraq and Syria, ISIS rapidly expanded, declaring a caliphate in 2014 that controlled large swaths of territory.
What ISIS Did in Practice
ISIS established a brutal regime characterized by extreme violence, including public executions, enslavement, and terrorist attacks both within its territory and abroad. It aimed to create a state governed by its strict interpretation of Islamic law, dismantling existing national borders. The group also used sophisticated propaganda to recruit fighters globally and finance its operations through oil smuggling, taxation, and looting.
Why ISIS Matters in Global Politics
ISIS significantly altered the geopolitical landscape of the Middle East and global security. Its rise prompted international military interventions, including US-led coalitions conducting airstrikes and supporting local ground forces. The group’s actions intensified sectarian tensions, influenced refugee flows, and inspired terrorist attacks worldwide, challenging counterterrorism and diplomacy efforts.
ISIS vs Al-Qaeda
While both are jihadist militant groups with extremist ideologies, ISIS and al-Qaeda differ in strategy and objectives. Al-Qaeda traditionally focused on attacking Western targets and operated as a decentralized network. ISIS, however, concentrated on territorial control and state-building, declaring itself a caliphate. The two groups have often been rivals, with ISIS criticized for its brutality even by al-Qaeda affiliates.
Decline and Legacy
By 2019, ISIS lost most of its territorial holdings due to sustained military campaigns by local forces and international coalitions. Despite this, it remains active as an insurgent and terrorist network, inspiring attacks globally. The group’s legacy includes ongoing instability in Iraq and Syria, challenges in rebuilding war-torn regions, and the continued threat of violent extremism.
Example
In 2014, ISIS rapidly took control of Mosul, Iraq's second-largest city, shocking the world with its swift territorial gains and brutal governance.
Covered in