[2] As a whole, it used to constitute one district in previous administrations, which is now divided into six sub-counties and Constituencies; namely, The county occupies an area of 26,744 km2.

[2] Among the notable incidents of Mandera history was the Rhamu Incident of the 1977 in which Somali military invaded Ethiopian defences from the Kenyan side.

The Somali army successfully crossed into the Sidamo Region of Ethiopia in the so called Ogaden War.

Precipitation is extremely low, with the area receiving a minimal amount of rain.

Droughts are not unusual, often resulting in significant loss of livestock in rural areas where pastoralism is common.