[Zhou Enlai at the headquarters of the Hankou Central Committee of the Chinese Communist Party, China]

[Zhou Enlai standing in front of a picture of Karl Marx at the headquarters of the Hankou Central Committee of the Chinese Communist Party, China]

[Leon Trotsky lecturing Danish students on the history of the Russian Revolution, Copenhagen]

[Children looking at wolf on man's shoulders, Hungary]

[Man and woman standing on street lined with Nazi flags, Saarbrücken, Saarland, France]

[Officers and commissars of the Marineros battalion look at the heights they must take, Rio Segre, Aragón front, near Fraga, Spain]

[Officer talking on a telephone at a field headquarters during the Republican offensive along the Rio Segre, Aragón front, Spain]

[Republican soldiers, Rio Segre, Aragón front, near Fraga, Spain]