On 17 October 2004 , al - Zarqawi pledged allegiance to Osama bin Laden 's al - Qaeda network .
The group became known as Tanzim Qaidat al - Jihad fi Bilad al - Rafidayn ( commonly known as al - Qaeda         or Tanzim ) .
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 ) .