Secret War: SAS and Delta

The Telegraph of London:

More than 3,500 insurgents have been "taken off the streets of Baghdad" by the elite British force in a series of audacious "Black Ops" over the past two years.

It is understood that while the majority of the terrorists were captured, several hundred, who were mainly members of the organisation known as "al-Qa'eda in Iraq" have been killed by the SAS.

The SAS is part of a highly secretive unit called "Task Force Black" which also includes Delta Force, the US equivalent of the SAS.