From Wikipedia

Clash Of The Worlds - Sudan

The Mahdist War was a colonial war of the late 19th century. It was fought between the Mahdist Sudanese and the Egyptian and later British forces. It has also been called the Anglo-Sudan War or the Sudanese Mahdist Revolt. The British have called their part in the conflict the Sudan Campaign. It was vividly described by Winston Churchill (who took part in its concluding stages) in The River War.