David L. Phillips writes that lessons drawn from Kirkuk can inform plans to stabilize Mosul and Nineveh province after Mosul is liberated from the Islamic State. Kirkuk and the Niveveh province are both made up of diverse ethnic and sectarian groups. Phillips argues that plans for Mosul must be part of a larger plan for the entire Nineveh Province and the core of securing post-conflict stabilization is delivering services and establishing a decentralized government.