[Soldiers in Republican bunkers around the Clinical Hospital, one of the principal bastions of the Nationalist rebels in the University City, Madrid]

[Woman standing amid rubble of buildings destroyed by Nationalist air raids, Madrid]

[People living on the platforms of subway stations in the aftermath of Nationalist air raids, Madrid]

[Refugees from the Nationalist air raids preparing to leave the city, Madrid]

[Three children outside bullet-riddled building following an air raid, 10 Peironcely Street, Madrid]

[Members of the International Brigades and the other Spanish Republican forces, Madrid]

[Group of Republican soldiers at rest, Madrid]

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