[Republican Basque soldiers talking with monk at the cloister sheltering them, Amorebieta, Basque region, Spain]

[Loyalist militiamen jumping over a gully carrying rifles, near Espejo, Córdoba front, Spain]

[Loyalist officer standing on a barrel giving a pep talk to loyalist soldiers, Andalusian front, Spain]

[The battalion's political commissar and commander, Rio Segre, Aragón front, near Fraga, Spain]

[Soldiers walking on a hill, preparing for battle, Río Segre, Aragón front, near Fraga, Spain]

[Republican soldiers helping wounded comrade, Río Segre, Aragón front, near Fraga, Spain]

[Republican soldiers helping wounded comrades, Río Segre, Aragón front, near Fraga, Spain]

[Republican soldiers crouching behind a car during the battle of Mount Solluve, Bilbao front, Spain]

[Republicans installing anti-aircraft artillery, Rio Segre, Aragón front, near Fraga, Spain]

[Soldier walking a cow through a town, Aragon, France]

[Republican soldiers carrying stretcher up the hillside, 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]

[Republican soldiers looking out through the bombed out Governor's Palace, Teruel, Aragón Front, Spain]

[Dolores Ibárruri Gómez, La Pasionaria, and Jose Diaz at the farewell parade for the International Brigades, Barcelona, Spain]

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

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

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

[Republican soldiers carrying spools of wire uphill, Rio Segre, Aragón front, near Fraga, Spain]

[Republican soldiers carrying a stretcher up the hillside, Rio Segre, Aragón front, near Fraga, Spain]

[Republicans at the last line of fire before the summit, Rio Segre, Aragón front, near Fraga, Spain]

[Republicans at the last line of fire before the summit, Rio Segre, Aragón front, near Fraga, Spain]

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

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

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