[Republican soldiers during the battle for this strategically located hilltop town, Teruel, Aragón front, Spain]

[Republican soldiers listening to their commander give a speech, Rio Segre, Aragón front, near Fraga, Spain]

[Woman reading graphic story of Ferdinand the Bull in Life magazine, with the city view behind, Spain]

[Frenchman André Marty, chief of the International Brigades, addressing troops at farewell ceremony, Les Masies, Spain]

[Republican soldiers run along the mountain preparing for battle, Rio Segre, Aragon front, near Fraga, Spain]

[Wounded Republican soldier on stretcher surrounded by standing comrades, Rio Segre, Aragón Front, near Fraga, Spain]

[Soldiers sitting around a table with a young woman, farewell ceremony for the International Brigades, near Falset, Spain]

[Men of the semi-Trotskyist POUM (Partido Obrero de Unificación Marxista) militia, Leciñena, Aragón front, Spain]