[Trader writing on a black board at the stock exchange, Paris]

[Leon Trotsky lecturing, Copenhagen, Denmark]

[Man with canes, Lisieux, France]

[Priest walking in front of old building, Lisieux, France]

[People on swings at a fair, Seville, Spain]

[People on balconies above barricade, Madrid]

[Crowd at land reform meeting, near Badajoz, Estremadura, Spain]

[Smoke in the air after a bombing, Bilbao, Spain]

[Group of people waiting to evacuate after a bombing, Bilbao, Spain]

[Republican soldiers standing in stairwell, Teruel, Aragón Front, Spain]

[Soldiers surrounding a bombed building, Teruel, Aragón Front, Spain]

[Soldier hiding behind stone wall during the battle, Rio Segre, Aragón front, near Fraga, Spain]

[Republican soldiers in cloud of dust, Rio Segre, Aragón front, near Fraga, Spain]

[Republican soldiers, Rio Segre, Aragón front, near Fraga, Spain]

[Marineros looking over a ledge, Rio Segre, Aragón front, near Fraga, Spain]

[Soldiers preparing for battle, Rio Segre, Aragón front, near Fraga, Spain]

[Republican soldiers storming forward, Rio Segre, Aragón front, near Fraga, Spain]

[Republican soldiers storming forward, Rio Segre, Aragón front, near Fraga, Spain]

[Soldiers building a sandbag dike to contain the flooded Yellow River, near Zhengzhou, China]

[Two soldiers carrying a stretcher, Rio Segre, Aragón front, near Fraga, Spain]

[Fires after bombing, Bilbao, Spain]

[Building exterior, Teruel, Spain]

[Facade of a small building that used to be a cafe, with sandbags in the windows and Franco slogan, Rio Segre, Aragón Front, near Fraga]

[Blind man at refugee transit center, Barcelona]