Al Qaeda is militant organisation founded in 1988 and led by Saif Al Adel. It has many branches, notably in Afghanistan, Yemen, Somalia and in the Maghreb
ISIS leader killed in US Special Forces operation in Syria
'Unabomber' transferred to US federal medical centre
US Treasury designates Al Qaeda support network in Brazil
US government accuses Iran of harbouring senior Al Qaeda leaders
How September 11 victims could claim frozen Afghan reserve funds
Centcom chief says Al Qaeda numbers up 'slightly' in Afghanistan
Guantanamo Bay detainee could give evidence on torture
Drone strike kills at least one in north-western Syria
Al Qaeda chief appears in video on 9/11 anniversary
