Borno

Borno is Nigeria's largest state by land area, in the far north-east, historically the heartland of the Kanem-Bornu Empire and home to the Shehu of Borno, whose palace remains in the state capital, Maiduguri. Its population is predominantly Kanuri, alongside Shuwa Arab, Marghi, Babur and other groups. Borno's identity has long rested on its Kanuri heritage, its position on trans-Saharan trade routes, and Lake Chad in its far north-east corner. Since 2009 the state has been the epicentre of the Boko Haram insurgency, which caused large-scale displacement, disrupted farming and trade, and damaged infrastructure across many local government areas, though Maiduguri and other urban centres have continued to function and gradual recovery efforts are ongoing.

Borno's history traces to the Kanem-Bornu Empire, one of Africa's longest-lasting states, which shifted its centre from Kanem to Bornu west of Lake Chad from around the fourteenth century and became a major trans-Saharan trading and Islamic scholarly power under the Sayfawa dynasty. In the early nineteenth century the empire was reorganised under Shehu Muhammad al-Kanemi, whose descendants continue as the Shehus of Borno, distinguishing Borno from the Fulani-led emirates created elsewhere by the 1804 jihad. Colonial Britain administered the area as Bornu Province within Northern Nigeria. After independence it formed part of the North-Eastern State, and Borno State was created on 3 February 1976, with Yobe State later split from it in 1991. Since 2009 the state has faced the Boko Haram insurgency, a major and continuing security challenge.

Borno spans Sudan savanna in the south-west to semi-arid Sahel conditions in the north-east, culminating in the Lake Chad basin, a shrinking wetland shared with Chad, Niger and Cameroon. The Komadugu Yobe River and seasonal watercourses feed the Chad basin and support fishing and irrigation farming where water is available. Rainfall is low, generally under 600mm annually and concentrated between June and September, with a long dry season and strong Harmattan winds. The Mandara Mountains rise along the state's southern border with Cameroon. Recurrent hazards include drought, desertification pressure on Sahelian land, and Lake Chad's long-term contraction, alongside insecurity that has restricted access to farmland and grazing areas in several local government areas.

Historically Borno was a centre of trans-Saharan trade in the Kanem-Bornu era, connecting West Africa with North Africa via caravan routes, and Maiduguri remains a regional trading hub. Agriculture includes millet, sorghum, groundnuts, gum arabic and irrigation-fed vegetables and rice near the Lake Chad basin, alongside cattle and camel rearing. Fishing on Lake Chad and the Komadugu Yobe River supports many households. The Boko Haram insurgency has severely disrupted farming, fishing, trade and livestock movement across large parts of the state since around 2009, reducing agricultural output and closing markets in affected areas, with humanitarian and reconstruction programmes now a significant part of the state's economic activity.