Fighters are using hunger as a weapon.

It’s why South Sudan’s famine is man-made.

And so are the 3 other famines developing in Nigeria, Somalia, and Yemen. Wars in these countries are threatening to starve 20 million people … or in all four countries, it’s war that’s threatened to put 20 million people at risk of starvation.1

To truly understand the international conflicts and trends shaping our world you need a big-picture view. Video journalist Sam Ellis of Vox uses maps to tell these stories and chart their effects on foreign policy.