Ayman al-Zawahiri leaves behind a robust network of strategically aligned but tactically independent al-Qaeda affiliates operating in Africa, Asia, and the Middle East.

Bruce Riedel, a former high-ranking CIA and Pentagon official, says the United States faces a very frustrating situation in Pakistan, and that the recent U.S. cross-border attacks from Afghanistan in…

Bruce Riedel, a former CIA official and key South Asia policymaker in the 1990s, says he believes Benazir Bhutto’s assassination “was almost certainly the work of al-Qaeda or al-Qaeda’s Pakistani all…

Bruce O. Riedel, an expert on South Asia, who has worked for the CIA, Pentagon, and National Security Council, says getting Pakistan to close down sanctuaries for Taliban militants poses the toughest…