- Boko Haram incursions; banditry (2018–present, severe: Rubu, Isa, Sabon Birni); Zamfara-Sokoto border insecurityNorthern Abandonment Cycle
Sokoto State · Crisis deep dive
Buhari II (2015–2023)
Methodology
Tier 1 · primary
Courts. Gazettes. National archives.
Tier 2 · corroborating
OCCRP. HRW. BudgIT. TheCable.
Tier 4 · tertiary, flagged
Wikipedia only where primary is pending. Always labelled.