KnowraAbu Bakr al-BaghdadiLinked fromLinked fromThe 9 pages that link to Abu Bakr al-Baghdadi, each with the reason it gives.All 9Broader topic 1Related 5Compared with 3Syrian Civil WarRelated: He directed the organization’s expansion into Syria and its bid to establish a caliphate.Islamic StateRelated: His leadership gave the caliphate claim a single figurehead.Bay'ahBroader topic: His proclamation relied on claimed bay'ah as recognition of his leadership.Salafi jihadismRelated: His leadership brought a rival state-building model to the center of Salafi-jihadist politics.Abu Musab al-ZarqawiCompared with: His later leadership transformed the organizational legacy associated with al-Zarqawi into a territorial state project.Ayman al-ZawahiriCompared with: His organization challenged al-Zawahiri’s authority and competed with al-Qaeda for allegiance.Battle of MosulRelated: He declared the group’s caliphate from Mosul’s Great Mosque of al-Nuri in 2014.History of terrorismRelated: His leadership connects insurgency, territorial rule, and transnational terrorist violence in the twenty-first century.Jihadi JohnCompared with: Unlike its leader, Emwazi became known chiefly through hostage videos.