[Outdoor mass, Berriatua, Basque Country, Spain]

[Young woman writing a letter on a suitcase at a refugee center, Montjuich, Barcelona]

[Woman nursing a baby at a land reform meeting, near Badajoz, Extremadura, Spain]

[Gernikako Arbola, Guernica, Spain]

[Portrait of Jose Antonio Aguirre, president of the newly autonomous Basque government, Bilbao]

[Spainish refugees aboard the S.S. Sinaia sailing to Mexico]

[Refugees walking on the road from Barcelona to the French border, Spain]

[Spanish refugees aboard the S.S. Sinai sailing to Mexico]

[Maternity ward, Barcelona]

[Three girls knitting for their brothers in the front, Madrid]

[General Enrique Lister and Ernest Hemingway, Mora de Ebro, Spain]

[Spanish refugees crossing the French border at Le Perthus, France]

[Republican militiamembers and Popular Front car, Barcelona]

[Basque soldiers converse with friar in the cloister of Amorebieta, Spain]

[Republican militiamen with a group of boys, Aragon front, Spain]

[Andre Malraux (left) and Ilya Ehrenburg (center) at the International Congress of Antifascist Writers, Valencia]

[Marines playing musical instruments on board the Battleship Jaime I, Almeria, Spain]

[Ernest Hemingway (center), American journalist Herbert Matthews (in beret), XV International Brigade chief of operations Malcolm Dunbar (left) and General Enrique Lister? (right) during the Battle of Teruel, Spain]

[Andre Malraux with General Enrique Lister, Catalan front, Spain]

[General Enrique Lister and Ernest Hemingway, Mora de Ebro, Spain]

[General Enrique Lister and Ernest Hemingway, Mora de Ebro, Spain]

[Madrid trenches]

[Madrid trenches]

[Republican soldiers looking for Nationalist snipers from ruins of a government building, Teruel, Spain]