Sir Antony James Beevor, (born 14 December 1946) is a British military historian. He has published several popular historical works, mainly on the Second World War, the Spanish Civil War, and most recently the Russian Revolution and Civil War. Educated at Abberley Hall School, Winchester College, and the Royal Military Academy Sandhurst, Beevor commanded a troop of tanks in the 11th Hussars in Germany before deciding in 1970 to leave the army and become a writer. He was a visiting professor at Birkbeck, University of London, and the University of Kent.
https://en.wikipedia.org/wiki/Antony_Beevor