[Three Loyalist militiamen in a gully aiming rifles, near Espejo, Córdoba front, Spain]

[Army soldiers march in a parade with guns and a flag, soldiers saluting in the foreground, Minorca, Spain]

[Soldiers standing around an illustration of the human digestion, circulation and respitory systems, Minorca, Spain]

[Republican soldiers walking amid damaged buildings, La Granjuela, Cordoba front, Spain]

[Republican soldiers in cloud of dust, Rio Segre, Aragón front, near Fraga, Spain]

[Three soldiers, holding guns pointed through holes in a fence, near Oviedo, Spain]

[Spanish girl embracing volunteer during farewell parade for the International Brigades, Barcelona, Spain]

[Mother nursing a baby while listening to political speech, near Badajoz, Extremadura, Spain]

[Marineros looking over a ledge, Rio Segre, Aragón front, near Fraga, Spain]

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

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

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

[Republican soldiers lying on the ground aiming rifles, Santa Eulalia, Aragón front, Spain]

[Major Milton Wolff, commander of the American Abraham Lincoln Brigade, near Falset, Spain]

[Telephone call to army command, Rio Segre, Aragón front, near Fraga, Spain]

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

[Two Republican soldiers, one with bandaged head, Navacerrada Pass, Segovia front , Spain]

[Two Republican soldiers, one with bandaged head, Navacerrada Pass, Segovia front , Spain]

[Two Republican soldiers, one with bandaged head, Navacerrada Pass, Segovia front , Spain]

[Spanish journalist reading newspaper, Rio Segre, Aragón front, near Fraga, Spain]

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

[Republican phone call to command, Rio Segre, Aragón front, near Fraga, Spain]

[Republican soldiers walking amongst the remains of City Hall, Teruel, Aragón Front, Spain]

[Repubilcan soldiers standing above the Santa Clara cloisters, Teruel, Aragón Front, Spain]