"The River War: An Account of the Reconquest of the Sudan" by Winston Churchill is a historical account published in 1899. The two-volume work chronicles the Anglo-Egyptian military campaign to reconquer Sudan between 1896 and 1899. Churchill describes General Kitchener's forces battling the Dervish armies, including the dramatic Battle of Omdurman where Churchill himself fought. The book combines vivid battle narratives with Churchill's personal observations and reflections on war, politics, and the modernization of military technology. (This is an automatically generated summary.)