Fighters are using hunger as a weapon. Subscribe to our channel! goo.gl/0bsAjO 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. Vox.com is a news website that helps you cut through the noise and understand what's really driving the events in the headlines. Check out www.vox.com to get up to speed on everything from Kurdistan to the Kim Kardashian app. Check out our full video catalog: goo.gl/IZONyE Follow Vox on Twitter: goo.gl/XFrZ5H Or on Facebook: goo.gl/U2g06o