Aylmer Maude

Hadji Murat (or alternatively Hadji Murad, although the first spelling better captures the original title in Russian) is a novella written by Leo Tolstoy from 1896 to 1904 and published posthumously in 1912 (though not in full until 1917). The protagonist is Hadji Murat, an Avar rebel commander who, for reasons of personal revenge, forges an uneasy alliance with the Russians he has been fighting. (from Wikipedia)