TERRORIST GROUPS
( AS OF APRIL 2025 )
OVERVIEW

Al-Shabaab is a Sunni Islamic terrorist group that publicly pledged loyalty to al-Qa‘ida in 2012. The group seeks to overthrow the Somali Federal Government, expel foreign forces from Somalia, and establish a fundamentalist Islamic state. Since 2014 al-Shabaab has killed more US citizens than any other al-Qa‘ida affiliate, and as of 2025, the group is al-Qa‘ida’s wealthiest component.
Al-Shabaab formed as the military wing of the Islamic Courts Union (ICU), which briefly controlled central and southern Somalia in 2006. After the ICU was removed from power by UN-backed Ethiopian forces in December 2006 and disbanded, al-Shabaab remained active and used foreign intervention to gain support for its struggle against occupying forces. Al-Shabaab uses radio broadcasts, websites, and social media to disseminate its propaganda to local and global audiences.
OPERATING AREA
Maintains stronghold in southern Somalia; mainly conducts operations in Somalia, Kenya, and Ethiopia
MEMBERS
Between 7,000 and 12,000
TACTICS AND TARGETS
Al-Shabaab targets US and other foreign military forces, including African Union Mission personnel, Somali Government and security forces, and civilian targets, such as hotels, shopping malls, universities, and busy intersections. The group has carried out mass-casualty attacks in Kenya, Somalia, and Uganda. Al-Shabaab’s complex attacks generally consist of an IED or VBIED detonation, followed by small-arms fire. The group also conducts ambushes, military-style assaults, kidnappings, mortar attacks, and assassinations in Mogadishu, such as an attempted assassination in March 2025 of Somali President Hassan Sheikh Mohamud.
TERRORIST GROUP DESIGNATION
The US State Department designated al-Shabaab as a foreign terrorist organization in March 2008. Many of the group’s senior leaders and officials—including explosives experts, operations plotters, and Kenya-based cell leaders—are Specially Designated Global Terrorists.
KEY LEADERS

Ahmed Diriye
a.k.a. Abu Ubaidah
Amir; group leader since 2014

Abukar Ali Adan
Deputy amir; former al-Shabaab military chief

Mahad Karate
a.k.a. Abdirahman Mohammed Warsame
Finance chief and commander of al-Shabaab’s amniyat (intelligence and security wing); former deputy amir
NOTABLE ATTACKS
2 August 2024
Lido Beach, Mogadishu, Somalia
Al-Shabaab conducts a suicide and small-arms attack at Lido Beach, a popular meeting spot, killing 37 people and injuring over 210 others.
5 January 2020
Camp Simba, Manda Bay, Kenya
Al-Shabaab conducts an indirect-fire and small-arms attack on the joint US-Kenyan military facility at Manda Bay, killing one US soldier and two US contractors.
15 January 2019
Dusit D2 Hotel, Nairobi, Kenya
Al-Shabaab detonates an explosives-laden truck in downtown Mogadishu, killing more than 500 people—including three US citizens—and injuring almost 300 others in the group’s deadliest attack in Somalia.
14 October 2017
Mogadishu, Somalia
Al-Shabaab detonates an explosives-laden truck in downtown Mogadishu, killing more than 500 people—including three US citizens—and injuring almost 300 others in the group’s deadliest attack in Somalia.
2 April 2015
Garissa University, Garissa, Kenya
Four al-Shabaab gunmen attack Garissa University, killing 148 people and injuring 100 others in the group’s deadliest attack in Kenya.
21 September 2013
Westgate Mall, Nairobi, Kenya
Four al-Shabaab gunmen conduct a four-day siege at Westgate Mall, killing 67 people and injuring around 200 others in an attack the group claims was in retaliation for Kenya’s military intervention in Somalia.