Yezid Sayigh is a senior fellow in the Carnegie Middle East program. His work focuses on the Syrian crisis, the political role of Arab armies, security sector transformation in Arab transitions, the reinvention of authoritarianism, and the Israeli-Palestinian conflict and peace process. Diwan spoke to Sayigh in early November to get his perspective on recent events in the Middle East, including the resignation of Prime Minister Saad al-Hariri, the Saudi escalation against the Lebanese government, and the ongoing rivalry between Saudi Arabia and Iran in the region.