[Soldier with grenade, Teruel, Aragón Front, Spain]

[Republican soldiers amongst debris, Teruel, Aragón Front, Spain]

[Man carrying a wounded boy, Battle of Teruel, Spain]

[Old couple sitting on a bench wearing a "May 1937" sticker on their clothes]

[Refugee, whose husband and son were killed earlier in the war, waiting with her dog as she flees northward, Barcelona]

[Andre Marty and Hans Kahle talking at a farewell ceremony for the International Brigades, near Falset, Spain]

[Streetside decoration for the farewell parade for the International Brigades, Barcelona]

[Discussion and telephone call to army command, Rio Segre, Aragón front, near Fraga, Spain]