[Refugee woman standing next to cart, Madrid]

[Men of the International Brigades looking out the windows in a laboratory of the Medical School building of the University City, Madrid]

[Republican bunkers around the Clinical Hospital, one of the principal bastions of the Nationalist rebels in the University City, Madrid]

[Republican bunkers around the Clinical Hospital, one of the principal bastions of the Nationalist rebels in the University City, Madrid]

[People sitting on bench outside of stone building, Moscow]

[Statue of Charles IV, Prague, Czechoslovakia]

[Loyalist soldier writing, outside Madrid]

[Student soldiers undergoing military training, Canton, China]