Fourth Republic — Obasanjo · Yar'Adua · Jonathan (1999–2015) — Adamawa State

Numan / Bachama–Hausa-Fulani communal clashes (2002–2004) — recurrent fighting at Numan, Lamurde and Demsa LGAs over chieftaincy, farmland and the Hama Bachama–Lamido of Adamawa jurisdictional dispute.
2008 Yola religious riots — sparked by sermons over the Plateau crisis; over 50 killed by NEMA estimates.
Boko Haram insurgency in Adamawa — 2010–2015 — the insurgency moves east from Borno along the Mubi-Madagali-Michika axis. Key incidents: – Mubi Federal Polytechnic massacre (1–2 October 2012) — at least 27 students executed in their hostels overnight. – State of emergency — declared 14 May 2013 by President Jonathan over Adamawa, Borno and Yobe; renewed twice. – Madagali, Michika and Mubi occupations (August–November 2014) — Boko Haram raises its flag over three Adamawa LGA headquarters; Mubi is rebranded "Madinatul Islam"; recaptured by the Nigerian Army between 13 November 2014 and January 2015. – Mubi market suicide bombings (2015, 2017, 2018) — recurrent attacks on the rebuilt market, killing dozens each time.Northern Abandonment Cycle