[Men on a brick bridge wall below an armored train, Spain]

[Republican soldier poking through roof, Spain]

[Recruitment and training of the new People's Army, Valencia]

[Republican soldiers standing with their guns, Brunete, Spain]

[View of Cathedral spire through alleyway, Toledo, Spain]

[People on balconies of building behind a barricade, Madrid]

[Workers at a munitions factory, Madrid]

[Republican soldiers on horseback, Jarama front, Spain]