Jama'at al-Tawhid wal-Jihad

Jama'at al-Tawhid wal-Jihad
جماعة التوحيد والجهاد
FounderAbu Musab al-Zarqawi 
LeadersAbu Musab al-Zarqawi 
Abu Anas al-Shami 
Omar Husayn Hadid al-Muhammadi 
Dates of operation1999–17 October 2004
HeadquartersFallujah
Active regionsIraq, limited in Jordan
Ideology
Allies Ansar al-Islam (associate)
Islamic Army of Iraq (sometimes)
Ansar al-Sunnah (sometimes)
Jaish al-Rashideen (sometimes)
Islamic Front for the Iraqi Resistance (sometimes)
Jeish Muhammad (sometimes)
Opponents Multi-National Force – Iraq
Coalition Provisional Authority
 United States
 Jordan
 Iran
 Turkey
 Japan
 United Nations
Battles and wars
Designated as a terrorist group by

Jama'at al-Tawhid wal-Jihad (Arabic: جماعة التوحيد والجهاد, lit.'Congregation of Monotheism and Jihad'), abbreviated as JTJ or Jama'at, was a Salafi jihadist militant group. It was founded in Jordan in 1999, and was led by Jordanian national Abu Musab al-Zarqawi for the entirety of its existence. During the Iraqi insurgency (2003–11), the group became a decentralized network with foreign fighters with a considerable Iraqi membership.

On 17 October 2004, al-Zarqawi pledged allegiance to Osama bin Laden's al-Qaeda network, and the group became known as Tanzim Qaidat al-Jihad fi Bilad al-Rafidayn (commonly known as al-Qaeda in Iraq or Tanzim). After several mergers with other groups and the formation of the Mujahideen Shura Council, it changed its name several times until it called itself Islamic State of Iraq (ISI) in 2006.