FILE - This file photo shows a portrait of Bolshevik revolutionary Leon Trotsky, founder of the Red Army, taken on Aug. 9, 1940, shortly before he was fatally attacked, Aug. 20, 1940, at his home in Mexico City. Once seen as the most likely successor to Vladimir Lenin as the leader of the Soviet Union, Trotsky lost a power struggle with Josef Stalin and fled abroad. A Soviet agent attacked Trotsky in 1940 with an ice axe, mortally wounding him. (AP Photo/File)