"No pasaran!" ("They will not get through!") Inhabitants of Madrid building barricades against approaching Nationalist troops

[Members of the International Brigades with gun, looking out a window, in or around University City, Madrid]

[Two boys on a roof top pointing at smoke rising in the distance of the city, Madrid, Spain]

[Men of the International Brigades in a laboratory of the Medical School building of the University City, Madrid]

[Men of the International Brigades catapulting grenades in the vicinity of the slaughterhouses near the University City, Madrid]

[Older woman and child on the platform of a subway station in the aftermath of Nationalist air raids, Madrid]

[Men of the International Brigades engaged in house-to-house fighting around the slaughterhouses near the University City, Madrid]

[Member of the International Brigades engaged in house-to-house fighting around the slaughterhouses near the University City, Madrid]