[Border officer checking a driver's laissez-passer, French-Spanish border]

[Border guard in his sentry box, near the French-Spanish border]

[Policemen checking a car at the French-Spanish border]

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

[Republican soldiers running, Rio Segre, Aragon Front, near Fraga]

[Soldiers preparing for battle, Rio Segre, Aragón Front, near Fraga, Spain]

[Soldiers preparing for battle, Rio Segre, Aragón Front, near Fraga, Spain]

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

[Republican soldiers resting in crevices, Rio Segre, Aragón Front, near Fraga, Spain]

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[Republican soldiers sitting against a wall, Rio Segre, Aragón Front, near Fraga, Spain]

[Republican soldiers sitting against wall, Rio Segre, Aragón Front, near Fraga, Spain]

[Republican soldier reading a map with a comrade while talking on the phone, Rio Segre, Aragón Front, near Fraga, Spain]

[Soldier talking on the phone while reading a map with a comrade, Rio Segre, Aragón Front, near Fraga, Spain]

[Republican soldiers on hill, Rio Segre, Aragón Front, near Fraga, Spain]

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

[Facade of a small building that used to be a cafe, with sandbags in the windows and Franco slogan, Rio Segre, Aragón Front, near Fraga, Spain]

[Facade of a small building that used to be a cafe, with sandbags in the windows and Franco slogan, Rio Segre, Aragón Front, near Fraga]

[Republican soldiers and a mule transporting munitions, Rio Segre, Aragón Front, near Fraga, Spain]

[Republican soldier hiding behind a stone wall during the battle, Rio Segre, Aragón Front, near Fraga]

[Republican soldier hiding behind rocks during battle, Rio Segre, Aragón Front, near Fraga, Spain]

[Republican soldier having his wounded stomach wrapped at the first aid station, Rio Segre, Aragón Front, near Fraga, Spain]

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

[Republican soldier having his wounded hand wrapped at the first aid station, Rio Segre, Aragón Front, near Fraga, Spain]