[Members of the International Brigades defending a building in the University City, Madrid]

[Boy sitting on girl lying in makeshift bed in the subway, Madrid]

[Soldier in the Ernst Thaelmann Brigade fighting for the Republic, Madrid, Spain]

[Member of the International Brigades defending a building in the University City, Madrid]

[Women and children near a poster encouraging "sangre fria" (cold blood) courage, Madrid]

[Republican soldiers behind barricade made of sandbags and luggage, University City, Madrid]

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

[Woman inventorying painting with two Republican soldiers, convent of Las Descalzas Reales, Madrid]