While it has suffered setbacks, notably bin Laden's killing in 2011 by US forces and the emergence of Islamic State as a rival, experts say al Qaeda still serves as a source of support and inspiration for militants in many regions, particularly in Africa. While al-Qaeda suffered losses and dislocation after the invasion of Afghanistan, its profile rose, and it expanded massively in the years that followed. Key points and original sources are listed below.

• While it has suffered setbacks, notably bin Laden's killing in 2011 by US forces and the emergence of Islamic State as a rival, experts say al Qaeda still serves as a source of support and inspiration for militants in many regions, particularly in Africa.S1

• While al-Qaeda suffered losses and dislocation after the invasion of Afghanistan, its profile rose, and it expanded massively in the years that followed.S2