[Republican soldier looking out from behind a stone wall, Rio Segre, Aragón front, near Fraga, Spain]

[Republican soldier looking out from behind a stone wall, Río Segre, Aragón front, near Fraga, Spain]

[Soldier talking on phone while reading a map next to comrade, Rio Segre, Aragón front, near Fraga, Spain]

[Officers and commissars of the Marineros battalion look at the heights they must take, Rio Segre, Aragón front, near Fraga, Spain]

[An aid station near the farmhouses in the first zone of fire, Rio Segre, Aragón front, near Fraga, Spain]

[Remains of bridge bombed by Nationalist rebels in an attempt to trap the Republicans, Rio Segre, Aragón front, near Fraga, Spain]

[People watching planes, Barcelona]

[Refugee transit center, Barcelona]