Combating Terrorism Center Logo Skip to content
destruction at Marriott hotel

Cooperation, Competition, & Fissures

Terrorist organizations cooperate and compete in a variety of ways. Review our research on the topic to learn more about how, why, and where that takes place.

Primary Sources

August 29, 2014

A Letter to the Sheikhs of ISI Shows level of Collaboration Between ISI and Members in the Iraqi Government

Hatam

October 8, 2013

Condolence Letter

Letter from Adam Gadahn

Letter to Hakimullah Mahsud

Jaysh al-Islam’s Questions to `Atiyatullah Al-Libi

Letter from Hafiz Sultan

N/A

Letter from `Atiyatullah al-Libi

N/A

Letter to `Atiyatullah al-Libi About Saudi Arabia Scholars

N/A

Letter of Advice to UBL

Letter from UBL to `Atiyatullah Al-Libi 4

Stay Informed

Sign up to receive updates from CTC.

Sign up