[Republican soldiers running with spools of wire, Rio Segre, Aragón front, near Fraga, Spain]

[Soldiers writing behind the Republican lines, Rio Segre, Aragon front, near Fraga, Spain]

[Machine gunners hiding behind stones, Rio Segre, Aragón front, near Fraga, Spain]

[Republican soldier tending to a wounded soldier, Rio Segre, Aragón front, near Fraga, Spain]

[Republican soldiers firing machine guns, Rio Segre, Aragón front, near Fraga, Spain]

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

[Republican soldier carrying a wounded soldier, Rio Segre, Aragón front, near Fraga, Spain]

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

[Collage of two prints of explosion in the mountainside, Rio Segre, Aragón front, near Fraga, Spain]

[Republican soldiers making a command call, Río Segre, Aragón front, near Fraga, Spain]

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

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

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

[Discussion and telephone call to army command, Rio Segre, Aragón front, near Fraga, 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 preparing a telephone wire, Río Segre, Aragón front, near Fraga, Spain]

[Republican soldiers firing machine guns, Rio Segre, Aragón front, near Fraga, Spain]

[Republican soldiers taking notes in a ditch, Rio Segre, Aragón Front, near Fraga, Spain]

[First Nationalist air bombs of the day, Río Segre, Aragón front, near Fraga, Spain]

[Republican soldiers working on damaged bridge, Rio Segre, Aragon front, near Fraga, Spain]

[Republican soldier with rifle on destroyed bridge, Rio Segre, Aragon front, near Fraga, Spain]