Sir Bernard Pares KBE was an English historian and diplomat. During the First World War, he was seconded to the Foreign Ministry in Petrograd, Russia, where he reported political events back to London, and worked in propaganda. He returned to London as professor of Russian history. He is best known for his numerous books on Russia, especially his standard textbook, A History of Russia (1926), which had highly detailed coverage of the revolutionary era. He was a very active public speaker in the 1940s in support of Stalin's Soviet Union.