[People watching planes, Barcelona]

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

[Ernst Busch, Erich Weinert and other attendees at the Second International Congress of Writers for the Defense of Culture, Valencia, Spain]

[Officers and commissars of the Marineros battalion look at the heights they must take, 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]

[Politicians at the funeral of General Lukacs, including Alvarez del Vajo (far left), Juan Negrin (white suit), Indalecio Prieto (right), Valencia, Spain]

[People sitting near the shelters so that they would not have to run every time the air raid alarm sounded, Bilbao, Spain]

[American Abraham Lincoln Brigade, led by Milton Wolff (center, without cap), at the farewell ceremony for the International Brigades, near Falset, Spain]