Algerian and Western counterterrorism efforts, along with an African-led peacekeeping force in Mali, have shifted the North African al-Qaeda franchise's criminal and terrorist activities to remote areas of the Sahara and Sahel, explains this Backgrounder.
Hezbollah's long-standing resistance to Israel gained this Lebanon-based Shiite political party and militant group broad support, but its involvement in Syria's civil war may jeopardize its domestic standing.
Pakistan has emerged as a sanctuary for some of the world's most violent groups, including al-Qaeda, the Taliban, and homegrown militants, that threaten the stability of Pakistan as well as the region.
With Iraq weakened and a civil war raging in Syria, itís unclear whether local forces and a U.S.-led international coalition can roll back the self-proclaimed Islamic State, explains this Backgrounder.
Al-Qaeda in the Arabian Peninsula has emerged as one of the most dangerous al-Qaeda affiliates, strengthening amid political unrest in Yemen. This Backgrounder examines the group and U.S. counterterrorism operations.